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Pickling is the process of preserving or extending the shelf life of food by either anaerobic fermentation in brine or immersion in vinegar. The pickling procedure typically affects the food's texture and flavor. The resulting food is called a ''pickle'', or, to prevent ambiguity, prefaced with ''pickled''. Foods that are pickled include vegetables, fruits, meats, fish, dairy and eggs. Pickling solutions that are typically highly acidic, with a pH of 4.6 or lower, and high in salt, prevent enzymes from working and micro-organisms from multiplying. Pickling can preserve perishable foods for months. Antimicrobial herbs and spices, such as mustard seed, garlic, cinnamon or cloves, are often added. If the food contains sufficient moisture, a pickling brine may be produced simply by adding dry salt. For example,
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
and
Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic ...
n kimchi are produced by salting the vegetables to draw out excess water. Natural fermentation at room temperature, by lactic acid bacteria, produces the required acidity. Other pickles are made by placing vegetables in vinegar. Like the canning process, pickling (which includes fermentation) does not require that the food be completely
sterile Sterile or sterility may refer to: *Asepsis Asepsis is the state of being free from disease-causing micro-organisms (such as pathogenic bacteria, viruses, pathogenic fungi, and parasites). There are two categories of asepsis: medical and surgi ...
before it is sealed. The acidity or salinity of the solution, the temperature of fermentation, and the exclusion of oxygen determine which microorganisms dominate, and determine the flavor of the end product.McGee, Harold (2004). '' On Food and Cooking: The Science and Lore of the Kitchen''. New York: Scribner, pp. 291–296. . When both salt concentration and temperature are low, '' Leuconostoc mesenteroides'' dominates, producing a mix of acids, alcohol, and aroma compounds. At higher temperatures '' Lactobacillus plantarum'' dominates, which produces primarily
lactic acid Lactic acid is an organic acid. It has a molecular formula . It is white in the solid state and it is miscible with water. When in the dissolved state, it forms a colorless solution. Production includes both artificial synthesis as well as nat ...
. Many pickles start with ''Leuconostoc'', and change to ''Lactobacillus'' with higher acidity.


History

Pickling with vinegar likely originated in ancient
Mesopotamia Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the ...
around 2400 BCE. There is archaeological evidence of cucumbers being pickled in the
Tigris Valley Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the ...
in 2030 BCE. Pickling vegetables in vinegar continued to develop in the Middle East region before spreading to the
Maghreb The Maghreb (; ar, الْمَغْرِب, al-Maghrib, lit=the west), also known as the Arab Maghreb ( ar, المغرب العربي) and Northwest Africa, is the western part of North Africa and the Arab world. The region includes Algeria, ...
, to
Sicily (man) it, Siciliana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = Ethnicity , demographics1_footnotes = , demographi ...
and to
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , ...
. From Spain it spread to the
Americas The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North America, North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. ...
. On the other hand, fermented salt pickling reportedly has its origins in China, where the earliest mention of pickled vegetables appears in a Chinese manuscript over 9,000 years old. Pickling was used as a way to preserve food for out-of-season use and for long journeys, especially by sea. Salt pork and salt beef were common staples for sailors before the days of steam engines. Although the process was invented to preserve foods, pickles are also made and eaten because people enjoy the resulting flavors. Pickling may also improve the nutritional value of food by introducing B vitamins produced by bacteria.


Etymology

The English term "pickle" first appears around 1400. It is from
Middle English Middle English (abbreviated to ME) is a form of the English language that was spoken after the Norman conquest of 1066, until the late 15th century. The English language underwent distinct variations and developments following the Old Englis ...
pikel, a spicy sauce served with meat or fish, borrowed from Middle Dutch or
Middle Low German Middle Low German or Middle Saxon (autonym: ''Sassisch'', i.e. " Saxon", Standard High German: ', Modern Dutch: ') is a developmental stage of Low German. It developed from the Old Saxon language in the Middle Ages and has been documented i ...
pekel ("brine") but later referred to preserving brine or vinegar.


In world cuisines


Asia


South Asia

South Asia has a large variety of pickles (known as ''achar'' (अचार, اچار) in Nepali, Assamese, Bengali, Hindi (अचार), Punjabi, Gujarati, Urdu (اچار) ''uppinakaayi'' in Kannada, ''lonacha'' (लोणचं) in Marathi, ''uppilittathu'' or ''achar'' in
Malayalam Malayalam (; , ) is a Dravidian language spoken in the Indian state of Kerala and the union territories of Lakshadweep and Puducherry ( Mahé district) by the Malayali people. It is one of 22 scheduled languages of India. Malayalam wa ...
, ''oorukai'' in
Tamil Tamil may refer to: * Tamils, an ethnic group native to India and some other parts of Asia ** Sri Lankan Tamils, Tamil people native to Sri Lanka also called ilankai tamils **Tamil Malaysians, Tamil people native to Malaysia * Tamil language, na ...
, pacchadi or ''ooragaya'' in
Telugu Telugu may refer to: * Telugu language, a major Dravidian language of India *Telugu people, an ethno-linguistic group of India * Telugu script, used to write the Telugu language ** Telugu (Unicode block), a block of Telugu characters in Unicode ...
, which are mainly made from varieties of mango, lemon, lime, gongura (a sour leafy shrub),
tamarind Tamarind (''Tamarindus indica'') is a leguminous tree bearing edible fruit that is probably indigenous to tropical Africa. The genus ''Tamarindus'' is monotypic, meaning that it contains only this species. It belongs to the family Fabacea ...
, Indian gooseberry (amla), and chilli. Vegetables such as eggplant, carrots, cauliflower, tomato, bitter gourd, green tamarind, ginger, garlic, onion, and citron are also occasionally used. These fruits and vegetables are mixed with ingredients like salt, spices, and vegetable oils. The pickling process is completed by placing filled jars in the sun where they mature in the sun. The sun's heat destroys moulds and microbes which could spoil the pickles. In
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
, pickles are known locally as ''achaar'' (in
Urdu Urdu (;"Urdu"
'' Hyderabadi pickle, a common delicacy prepared from an assortment of fruits (most notably mangoes) and vegetables blended with selected spices. Although the origin of the word is ambiguous, the word āchār is widely considered to be of Persian origin. Āchār in Persian is defined as ‘powdered or salted meats, pickles, or fruits, preserved in salt, vinegar, honey, sugar or syrup.' In
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
, a date and shallot pickle ''achcharu'' is traditionally prepared from carrots, chilli powder, shallots and ground dates dates mixed with garlic, crushed fresh ginger, green chilis, mustard seeds and vinegar, and left to sit in a clay pot. Indian pickles are mostly prepared in three ways: salt/ brine, oil, and vinegar, with mango pickle being most popular among all.From spiced mango to drumstick pith: How Usha Prabakaran's book changed the way we tasted pickles
, Economic Times, 4 August 2019.


Southeast Asia

Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
,
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Gui ...
n and
Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federal constitutional monarchy consists of thirteen states and three federal territories, separated by the South China Sea into two regions: Peninsular Malaysia and Borneo's East Mal ...
n pickles, called ''acar'' are typically made out of cucumber, carrot, bird's eye chilies, and shallots, these items being seasoned with vinegar, sugar and salt. Fruits, such as papaya and pineapple, are also sometimes pickled. In the
Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...
, ''pickling'' is a common method of preserving food, with many commonly eaten foods pickled, traditionally done using large earthen jars. The process is known as ''buro'' or ''binuro''. Pickling was a common method of preserving a large variety of foods like fish throughout the archipelago before the advent of refrigeration, but its popularity is now confined to vegetables and fruits. '' Atchara'' is primarily made out of julienned green papaya, carrots, and shallots, seasoned with cloves of garlic and vinegar; but could include ginger, bell peppers, white radishes, cucumbers or bamboo shoots. Pickled unripe mangoes or ''burong mangga'', unripe tomatoes, guavas, jicama, bitter gourd and other fruit and vegetables still retain their appeal. Siling labuyo, sometimes with garlic and red onions, is also pickled in bottled vinegar and is a staple condiment in Filipino cuisine. In Vietnamese cuisine, vegetable pickles are called ("salted vegetables") or ("sour vegetables"). or is made from a variety of fruits and vegetables, including , eggplant,
Napa cabbage Napa cabbage (''Brassica rapa'' subsp. ''pekinensis'' or ''Brassica rapa'' Pekinensis Group) is a type of Chinese cabbage originating near the Beijing region of China that is widely used in East Asian cuisine. Since the 20th century, it has als ...
, kohlrabi,
carrot The carrot ('' Daucus carota'' subsp. ''sativus'') is a root vegetable, typically orange in color, though purple, black, red, white, and yellow cultivars exist, all of which are domesticated forms of the wild carrot, ''Daucus carota'', na ...
s, radishes, papaya, cauliflower, and . made from carrots and radishes are commonly added to sandwiches. is made by pressing and sun-drying vegetables such as and
bok choy Bok choy (American English, Canadian English, and Australian English), pak choi (British English) or pok choi (''Brassica rapa'' subsp. ''chinensis'') is a type of Chinese cabbage, used as food. ''Chinensis'' varieties do not form heads and have g ...
. is a specialty of Nghệ An and Hã Tĩnh provinces made from
jackfruit The jackfruit (''Artocarpus heterophyllus''), also known as jack tree, is a species of tree in the fig, mulberry, and breadfruit family ( Moraceae). Its origin is in the region between the Western Ghats of southern India, all of Bangladesh, ...
. In
Burma Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...
, tea leaves are pickled to produce lahpet, which has strong social and cultural importance.


East Asia

A wide variety of foods are pickled throughout East Asia. The pickles are often sweet, salty, and/or spicy and preserved in sweetened solutions or oil.
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...
is home to a huge variety of pickled vegetables, including radish, '' baicai'' (Chinese cabbage, notably '' suan cai'', '' pao cai'', and Tianjin preserved vegetable), '' zha cai'',
chili pepper Chili peppers (also chile, chile pepper, chilli pepper, or chilli), from Nahuatl '' chīlli'' (), are varieties of the berry-fruit of plants from the genus ''Capsicum'', which are members of the nightshade family Solanaceae, cultivated for ...
(e.g. '' duo jiao''), and cucumbers, among many others.
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
ese '' tsukemono'' (pickled foods) include '' takuan'' (
daikon Daikon or mooli, ''Raphanus sativus'' var. ''longipinnatus,'' is a mild-flavored winter radish usually characterized by fast-growing leaves and a long, white, root. Originally native to continental East Asia, daikon is harvested and consume ...
), '' umeboshi'' ( ume plum), '' tataki gobo'' ( burdock root), '' gari'' & ''
beni shōga is a type of ''tsukemono'' (Japanese pickle). It is made from thin strips of ginger pickled in umezu (), the vinegary pickling solution used to make umeboshi. The red color is traditionally derived from red perilla (''Perilla frutescens'' var. ...
'' (ginger), turnip, cucumber, and Chinese cabbage. The
Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic ...
n staple kimchi is usually made from pickled
napa cabbage Napa cabbage (''Brassica rapa'' subsp. ''pekinensis'' or ''Brassica rapa'' Pekinensis Group) is a type of Chinese cabbage originating near the Beijing region of China that is widely used in East Asian cuisine. Since the 20th century, it has als ...
and radish, but is also made from green onions, garlic stems, chives and a host of other vegetables. Jangajji is another banchan consisting of pickled vegetables.


Western Asia

In
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
,
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula ...
, Arab countries, the
Balkans The Balkans ( ), also known as the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the who ...
, and the
South Caucasus The South Caucasus, also known as Transcaucasia or the Transcaucasus, is a geographical region on the border of Eastern Europe and Western Asia, straddling the southern Caucasus Mountains. The South Caucasus roughly corresponds to modern Arme ...
, pickles (called
torshi Torshi ( fa, ترشی, lit=sourness, translit=torshi) are the pickled vegetables of many Middle Eastern and Balkan cuisines. Torshi is common in Arab, Turkish, Kurdish, Afghan, Bosnian, Armenian and Iranian cuisine. Iran has hundreds of types o ...
in Persian, ''turşu'' in
Turkish language Turkish ( , ), also referred to as Turkish of Turkey (''Türkiye Türkçesi''), is the most widely spoken of the Turkic languages, with around 80 to 90 million speakers. It is the national language of Turkey and Northern Cyprus. Significant sma ...
and ''mekhallel'' in
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walter ...
) are commonly made from turnips, peppers, carrots, green olives, cucumbers, eggplants, cabbage, green tomatoes, lemons, and cauliflower.
Sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
, as well as cabbage pickled in vinegar, with carrot and other vegetables is commonly consumed as a kosher dish in
Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
and is considered pareve, meaning that it contains no meat or dairy so it can be consumed with either.


Europe


Central and Eastern Europe

In
Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Cr ...
, the main meal ''(lunch)'' usually includes some kind of pickles ''(savanyúság)'', but pickles are also commonly consumed at other times of the day. The most commonly consumed pickles are
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
''(savanyú káposzta)'', pickled cucumbers and peppers, and ''csalamádé'', but tomatoes, carrots, beetroot, baby corn, onions, garlic, certain squashes and melons, and a few fruits like plums and apples are used to make pickles too. Stuffed pickles are specialties, usually made of peppers or melons pickled after being stuffed with a cabbage filling. Pickled plum stuffed with garlic is a unique Hungarian type of pickle just like ''csalamádé'' and leavened cucumber ''(kovászos uborka)''. ''Csalamádé'' is a type of mixed pickle made of cabbage, cucumber, paprika, onion, carrot, tomatoes, and bay leaf mixed up with vinegar as the fermenting agent. Leavened cucumber, unlike other types of pickled cucumbers that are around all year long, is rather a
seasonal A season is a division of the year based on changes in weather, ecology, and the number of daylight hours in a given region. On Earth, seasons are the result of the axial parallelism of Earth's tilted orbit around the Sun. In temperate and ...
pickle produced in the summer. Cucumbers, spices, herbs, and slices of bread are put in a glass jar with salt water and kept in direct sunlight for a few days. The yeast from the bread, along with other pickling agents and spices fermented under the hot sun, give the cucumbers a unique flavor, texture, and slight carbonation. Its juice can be used instead of carbonated water to make a special type of spritzer ''('Újházy fröccs')''. It is common for Hungarian households to produce their own pickles. Different regions or towns have their special recipes unique to them. Among them all, the Vecsési sauerkraut ''(Vecsési savanyú káposzta)'' is the most famous.
Romanian Romanian may refer to: *anything of, from, or related to the country and nation of Romania ** Romanians, an ethnic group **Romanian language, a Romance language ***Romanian dialects, variants of the Romanian language **Romanian cuisine, traditiona ...
pickles ( murături) are made out of beetroot,
cucumbers Cucumber (''Cucumis sativus'') is a widely-cultivated creeping vine plant in the Cucurbitaceae family that bears usually cylindrical fruits, which are used as culinary vegetables.carrot The carrot ('' Daucus carota'' subsp. ''sativus'') is a root vegetable, typically orange in color, though purple, black, red, white, and yellow cultivars exist, all of which are domesticated forms of the wild carrot, ''Daucus carota'', na ...
s,
cabbage Cabbage, comprising several cultivars of ''Brassica oleracea'', is a leafy green, red (purple), or white (pale green) biennial plant grown as an annual vegetable crop for its dense-leaved heads. It is descended from the wild cabbage ( ''B.&n ...
, garlic,
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
(bell peppers stuffed with cabbage), bell peppers,
melon A melon is any of various plants of the family Cucurbitaceae with sweet, edible, and fleshy fruit. The word "melon" can refer to either the plant or specifically to the fruit. Botanically, a melon is a kind of berry, specifically a "pepo". T ...
s, mushrooms, turnips,
celery Celery (''Apium graveolens'') is a marshland plant in the family Apiaceae that has been cultivated as a vegetable since antiquity. Celery has a long fibrous stalk tapering into leaves. Depending on location and cultivar, either its stalks, ...
and cauliflower. Meat, like
pork Pork is the culinary name for the meat of the domestic pig (''Sus domesticus''). It is the most commonly consumed meat worldwide, with evidence of pig husbandry dating back to 5000 BCE. Pork is eaten both freshly cooked and preserved ...
, can also be preserved in salt and lard. Polish, Czech and Slovak traditional pickles are cucumbers, sauerkraut, peppers, beetroot, tomatoes, but other pickled fruits and vegetables, including plums, pumpkins and mushrooms are also common. North Caucasian, Russian,
Ukrainian Ukrainian may refer to: * Something of, from, or related to Ukraine * Something relating to Ukrainians, an East Slavic people from Eastern Europe * Something relating to demographics of Ukraine in terms of demography and population of Ukraine * So ...
and Belarusian pickled items include beets, mushrooms, tomatoes, sauerkraut, cucumbers,
ramsons ''Allium ursinum'', known as wild garlic, ramsons, cowleekes, cows's leek, cowleek, buckrams, broad-leaved garlic, wood garlic, bear leek, Eurasian wild garlic or bear's garlic, is a bulbous perennial flowering plant in the amaryllis family Amary ...
, garlic, eggplant (which is typically stuffed with julienned carrots), custard squash, and watermelon. Garden produce is commonly pickled using salt, dill, blackcurrant leaves,
bay leaves The bay leaf is an aromatic leaf commonly used in cooking. It can be used whole, either dried or fresh, in which case it is removed from the dish before consumption, or less commonly used in ground form. It may come from several species of tr ...
and garlic and is stored in a cool, dark place. The leftover brine (called ''rassol'' (рассол) in Russian) has a number of culinary uses in these countries, especially for cooking traditional soups, such as shchi, rassolnik, and solyanka. ''Rassol'', especially cucumber or
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
rassol, is also a favorite traditional remedy against morning hangover.


Southern Europe

An Italian pickled vegetable dish is giardiniera, which includes onions, carrots, celery and cauliflower. Many places in southern Italy, particularly in Sicily, pickle eggplants and hot peppers. In
Albania Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and share ...
,
Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedo ...
,
Serbia Serbia (, ; Serbian: , , ), officially the Republic of Serbia ( Serbian: , , ), is a landlocked country in Southeastern and Central Europe, situated at the crossroads of the Pannonian Basin and the Balkans. It shares land borders with Hu ...
,
North Macedonia North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Socialist Feder ...
and
Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula ...
, mixed pickles, known as ''turshi'', ''tursija'' or ''turshu'' form popular appetizers, which are typically eaten with '' rakia''. Pickled green tomatoes, cucumbers, carrots, bell peppers, peppers, eggplants, and
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
are also popular. Turkish pickles, called ''turşu'', are made out of vegetables, roots, and fruits such as peppers, cucumber, Armenian cucumber, cabbage, tomato, eggplant (aubergine), carrot, turnip, beetroot, green almond, baby watermelon, baby cantaloupe, garlic, cauliflower, bean and green plum. A mixture of spices flavor the pickles. In
Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders wi ...
, pickles, called ''τουρσί(α)'', are made out of carrots, celery, eggplants stuffed with diced carrots, cauliflower,
tomato The tomato is the edible berry of the plant ''Solanum lycopersicum'', commonly known as the tomato plant. The species originated in western South America, Mexico, and Central America. The Mexican Nahuatl word gave rise to the Spanish word ...
es, and peppers. In
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , ...
, pickles, known as "encurtidos", are mainly made with olives, cucumbers, onions and green peppers ("guindillas" or "piparras"). "Banderillas" are small pieces of pickled cucumber and green pepper, along with olives and anchovies, mounted into toothpicks, and are very popular as Tapas.


Northern Europe

In Britain, pickled onions and
pickled egg Pickled eggs are typically hard boiled eggs that are cured in vinegar or brine. As with many foods, this was originally a way to preserve the food so that it could be eaten months later. Pickled eggs have since become a favorite among many ...
s are often sold in
pubs A pub (short for public house) is a kind of drinking establishment which is licensed to serve alcoholic drinks for consumption on the premises. The term ''public house'' first appeared in the United Kingdom in late 17th century, and was ...
and fish and chip shops. Pickled beetroot, walnuts, and gherkins, and condiments such as Branston Pickle and piccalilli are typically eaten as an accompaniment to pork pies and cold meats, sandwiches or a
ploughman's lunch A ploughman's lunch is an English cold meal based around bread, cheese, and fresh or pickled onions.Hessayon, ''The new vegetable and herb expert'', 2014, p. 73 Additional items can be added such as ham, green salad, hard boiled eggs, and ...
. Other popular pickles in the UK are pickled mussels, cockles, red cabbage, mango
chutney A chutney is a spread in the cuisines of the Indian subcontinent. Chutneys are made in a wide variety of forms, such as a tomato relish, a ground peanut garnish, yogurt or curd, cucumber, spicy coconut, spicy onion or mint dipping sauce ...
,
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
, and olives.
Rollmops Rollmops () are pickled herring fillets, rolled into a cylindrical shape, often around a savoury filling. Presentation The filling usually consists of onion, sliced pickled gherkin, or green olive with pimento. Rollmops are often skewered with ...
are also quite widely available under a range of names from various producers both within and out of the UK.
Pickled herring Pickled herring is a traditional way of preserving herring as food by pickling or curing. Most cured herring uses a two-step curing process: it is first cured with salt to extract water; then the salt is removed and the herring is brined in ...
,
rollmops Rollmops () are pickled herring fillets, rolled into a cylindrical shape, often around a savoury filling. Presentation The filling usually consists of onion, sliced pickled gherkin, or green olive with pimento. Rollmops are often skewered with ...
, and
salmon Salmon () is the common name for several commercially important species of euryhaline ray-finned fish from the family Salmonidae, which are native to tributaries of the North Atlantic (genus '' Salmo'') and North Pacific (genus '' Onco ...
are popular in
Scandinavia Scandinavia; Sámi languages: /. ( ) is a subregion in Northern Europe, with strong historical, cultural, and linguistic ties between its constituent peoples. In English usage, ''Scandinavia'' most commonly refers to Denmark, Norway, and S ...
. Pickled cucumbers and red garden beets are important as condiments for several traditional dishes. Pickled capers are also common in Scandinavian cuisine.


North America

In the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
and
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
,
pickled cucumber A pickled cucumber (commonly known as a pickle in the United States and Canada and a gherkin in Britain, Ireland, South Africa, Australia, and New Zealand) is a usually small or miniature cucumber that has been pickled in a brine, vinegar ...
s (most often referred to simply as "pickles"), olives, and
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
are most commonly seen, although pickles common in other nations are also very widely available. In Canada and the US, there may be a distinction made between gherkins (usually smaller), and pickles (larger pickled cucumbers). Sweet pickles made with fruit are more common in the Cuisine of the American South. The pickling "syrup" is made with vinegar, brown sugar, and whole spices cinnamon sticks, allspice and cloves. Fruit pickles can be made with an assortment of fruits including watermelon, cantaloupe,
Concord grapes The Concord grape is a cultivar derived from the grape species ''Vitis labrusca'' (also known as fox grape) that are used as table grapes, wine grapes and juice grapes. They are often used to make grape jelly, grape juice, grape pies, grape-f ...
and peaches. Canadian pickling is similar to that of Britain. Through the winter, pickling is an important method of food preservation. Pickled cucumbers, onions, and eggs are common. Pickled egg and pickled sausage make popular pub snacks in much of English Canada.
Chow-chow The Chow Chow is a spitz-type of dog breed originally from northern China. The Chow Chow is a sturdily built dog, square in profile, with a broad skull and small, triangular, erect ears with rounded tips. The breed is known for a very dense ...
is a tart vegetable mix popular in the Maritime Provinces and the
Southern United States The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, or simply the South) is a geographic and cultural region of the United States of America. It is between the Atlantic Ocean ...
, similar to piccalilli. Pickled fish is commonly seen, as in Scotland, and
kippers A kipper is a whole herring, a small, oily fish, that has been split in a butterfly fashion from tail to head along the dorsal ridge, gutted, salted or pickled, and cold-smoked over smouldering wood chips (typically oak). In the United King ...
may be seen for breakfast, as well as plentiful smoked salmon. Meat is often also pickled or preserved in different brines throughout the winter, most prominently in the harsh climate of Newfoundland.
Pickled egg Pickled eggs are typically hard boiled eggs that are cured in vinegar or brine. As with many foods, this was originally a way to preserve the food so that it could be eaten months later. Pickled eggs have since become a favorite among many ...
s are common in many regions of the United States.
Pickled herring Pickled herring is a traditional way of preserving herring as food by pickling or curing. Most cured herring uses a two-step curing process: it is first cured with salt to extract water; then the salt is removed and the herring is brined in ...
is available in the Upper Midwest. Giardiniera, a mixture of pickled peppers, celery and olives, is a popular condiment in
Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = List of sovereign states, Count ...
and other Midwestern cities with large Italian-American populations, and is often consumed with Italian beef sandwiches.
Pennsylvania Dutch Country The Pennsylvania Dutch Country ( Pennsylvania Dutch: ''Deitscherei'' Dutchery', also called Pennsylvania Dutchland ( Pennsylvania Dutch: ''Pennsylvania Deitschland'', german: Pennsylvania Deutschland), or simply the Dutch Country or Dutchland ( ...
has a strong tradition of pickled foods, including chow-chow and red beet eggs. In the Southern United States, pickled okra and watermelon rind are popular, as are deep-fried pickles and pickled pig's feet, pickled chicken eggs, pickled quail eggs, pickled garden vegetables and pickled sausage. Various pickled vegetables, fish, or eggs may make a side dish to a Canadian lunch or dinner. Popular pickles in the Pacific Northwest include pickled asparagus and green beans. Pickled fruits like blueberries and early green strawberries are paired with meat dishes in restaurants.


Thanksgiving

Pickles were part of Thanksgiving dinner traditions as early as 1827. The first mention of pickles at Thanksgiving comes from Sarah Josepha Hale's novel '' Northwood''. (Hale is best known for her successful campaign to have Thanksgiving recognized as a national holiday in the United States.) Pickled peaches, coleslaw and other mixed pickles continue to be served alongside cranberry sauce at Thanksgiving dinner in present times.


Mexico, Central America, and South America

In
Mexico Mexico (Spanish language, Spanish: México), officially the United Mexican States, is a List of sovereign states, country in the southern portion of North America. It is borders of Mexico, bordered to the north by the United States; to the so ...
,
chili pepper Chili peppers (also chile, chile pepper, chilli pepper, or chilli), from Nahuatl '' chīlli'' (), are varieties of the berry-fruit of plants from the genus ''Capsicum'', which are members of the nightshade family Solanaceae, cultivated for ...
s, particularly of the
Jalapeño The jalapeño ( , , ) is a medium-sized chili pepper pod type cultivar of the species ''Capsicum annuum''. A mature jalapeño chili is long and hangs down with a round, firm, smooth flesh of wide. It can have a range of pungency, with Scov ...
and serrano varieties, pickled with onions, carrots and herbs form common condiments. In the
Mesoamerican region The Mesoamerican region (often abbreviated MAR) is a trans-national economic region in the Americas that is recognized by the OECD and other economic and developmental organizations, comprising the united economies of the seven countries in Centr ...
, pickling is known as encurtido or "curtido" for short. The pickles or "curtidos" as known in Latin America are served cold, as an appetizer, as a side dish or as a tapas dish in Spain. In several Central American countries it is prepared with cabbage, onions, carrots, lemon, vinegar, oregano, and salt. In Mexico, "curtido" consists of carrots, onions, and jalapeño peppers and used to accompany meals common in taquerías and restaurants. Another example of a type of pickling which involves the pickling of meats or seafood is the "escabeche" or "ceviches" popular in Peru, Ecuador, and throughout Latin America and the Caribbean. These dishes include the pickling of pig's feet, pig's ears, and gizzards prepared as an "escabeche" with spices and seasonings to flavor it. The ceviches consist of shrimp, octopus, and various fishes seasoned and served cold.


Process

In traditional pickling, fruit or vegetables are submerged in brine (20–40 grams/L of salt (3.2–6.4 oz/imp gal or 2.7–5.3 oz/US gal)), or shredded and salted as in
sauerkraut Sauerkraut (; , "sour cabbage") is finely cut raw cabbage that has been fermented by various lactic acid bacteria. It has a long shelf life and a distinctive sour flavor, both of which result from the lactic acid formed when the bacteria ...
preparation, and held underwater by flat stones layered on top. Alternatively, a lid with an airtrap or a tight lid may be used if the lid is able to release pressure which may result from
carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is t ...
buildup. Mold or (white) kahm
yeast Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constit ...
may form on the surface; kahm yeast is mostly harmless but can impart an off taste and may be removed without affecting the pickling process. In chemical pickling, the fruits or vegetables to be pickled are placed in a sterilized jar along with brine, vinegar, or both, as well as spices, and are then allowed to mature until the desired taste is obtained. The food can be pre-soaked in brine before transferring to vinegar. This reduces the water content of the food, which would otherwise dilute the vinegar. This method is particularly useful for fruit and vegetables with a high natural water content. In commercial pickling, a preservative such as sodium benzoate or EDTA may also be added to enhance shelf life. In fermentation pickling, the food itself produces the preservation agent, typically by a process involving '' Lactobacillus'' bacteria that produce lactic acid as the preservative agent. Alum, short for aluminum sulfate, is used in pickling to promote crisp texture and is approved, though not recommended, as a food additive by the United States
Food and Drug Administration The United States Food and Drug Administration (FDA or US FDA) is a federal agency of the Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food ...
. Another common crisping agent is calcium chloride, which evolved from the practice of using pickling lime. See also
firming agent Firming agents are food additives added in order to precipitate residual pectin, thus strengthening the structure of the food and preventing its collapse during processing. These are salts, typically lactates or phosphates, calcium salts or alumi ...
. "Refrigerator pickles" are unfermented pickles made by marinating fruit or vegetables in a seasoned vinegar solution. They must be stored under refrigeration or undergo canning to achieve long-term storage. Japanese Tsukemono use a variety of pickling ingredients depending on their type, and are produced by combining these ingredients with the vegetables to be preserved and putting the mixture under pressure.


Possible health hazards of pickled vegetables

The
World Health Organization The World Health Organization (WHO) is a specialized agency of the United Nations responsible for international public health. The WHO Constitution states its main objective as "the attainment by all peoples of the highest possible level o ...
has listed pickled vegetables as a possible
carcinogen A carcinogen is any substance, radionuclide, or radiation that promotes carcinogenesis (the formation of cancer). This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes. Several radioactive sub ...
, and the ''
British Journal of Cancer The ''British Journal of Cancer'' is a twice-monthly professional medical journal owned by Cancer Research UK (a registered charity in the United Kingdom), published on their behalf by Springer Nature's Nature Research. The ''British Journal of C ...
'' released an online 2009
meta-analysis A meta-analysis is a statistical analysis that combines the results of multiple scientific studies. Meta-analyses can be performed when there are multiple scientific studies addressing the same question, with each individual study reporting m ...
of research on pickles as increasing the risks of esophageal cancer. The report, citing limited data in a statistical meta analysis, indicates a potential two-fold increased risk of oesophageal cancer associated with Asian pickled vegetable consumption. Results from the research are described as having "high heterogeneity" and the study said that further well-designed prospective studies were warranted. However, their results stated "The majority of subgroup analyses showed a statistically significant association between consuming pickled vegetables and Oesophageal Squamous Cell Carcinoma". The 2009 meta-analysis reported heavy infestation of pickled vegetables with
fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately fr ...
. Some common fungi can facilitate the formation of N-nitroso compounds, which are strong oesophageal carcinogens in several animal models. Roussin red methyl ester, a non-alkylating nitroso compound with tumour-promoting effect in vitro, was identified in pickles from Linzhou, Henan (formerly Linxian) in much higher concentrations than in samples from low-incidence areas. Fumonisin mycotoxins have been shown to cause liver and kidney tumours in rodents. A 2017 study in ''
Chinese Journal of Cancer The ''Chinese Journal of Cancer'' () is a monthly peer-reviewed open access medical journal covering oncology. The editor-in-chief is Rui-Hua Xu of the Sun Yat-sen University Cancer Center. It is published by BioMed Central and sponsored by the Su ...
'' has linked salted vegetables ( common among Chinese cuisine) to a fourfold increase in nasopharynx cancer. The researchers believe possible mechanisms include production of nitrosamines (a type of N-nitroso compound) by fermentation and activation of
Epstein–Barr virus The Epstein–Barr virus (EBV), formally called ''Human gammaherpesvirus 4'', is one of the nine known human herpesvirus types in the herpes family, and is one of the most common viruses in humans. EBV is a double-stranded DNA virus. It is ...
by fermentation products. Historically, pickling caused health concerns for reasons associated with copper salts, as explained in the mid-19th century '' The English and Australian Cookery Book'': "The evidence of the Lancet commissioner (Dr. Hassall) and Mr. Blackwell (of the eminent firm of Crosse and Blackwell) went to prove that the pickles sold in the shops are nearly always artificially coloured, and are thus rendered highly unwholesome, if not actually poisonous."


Risk reduction

Reduction of suspected carcinogens from pickled products is a subject of active research. * Fungi are of interest both for spoilage prevention and reduction of mycotoxins. Some pickle cultures are said to contain bacteria producing natural antifungals. * Nitrites, responsible for the creation of N-nitroso compounds, is reduced by low PH and/or high temperature. Inclusion of a porcini enzyme (or the whole mushroom) also reduces nitrite content.


Gallery

File:Ogórki w trakcie kiszenia.jpg,
Pickled cucumber A pickled cucumber (commonly known as a pickle in the United States and Canada and a gherkin in Britain, Ireland, South Africa, Australia, and New Zealand) is a usually small or miniature cucumber that has been pickled in a brine, vinegar ...
s File:Aringa-marinato.jpg,
Pickled herring Pickled herring is a traditional way of preserving herring as food by pickling or curing. Most cured herring uses a two-step curing process: it is first cured with salt to extract water; then the salt is removed and the herring is brined in ...
File:Pickled mushrooms....jpg, Pickled mushrooms File:Aceitunas en plato.jpg, Pickled olives File:Pickled Vegetables.JPG, Pickled vegetables File:Pickled fruits and veggies.jpg, Fermented homemade pickled cucumber, chili pepper, garlic, and apple in the hot climate of Indonesia


See also

* * Curing (food preservation) * * * * * * Smoking (cooking)


References


External links


Fermented Fruits and Vegetables: A Global Perspective
�� Food and Agriculture Organization of the United Nations
National Center for Home Food Preservation: How do I...Pickle

Pickles
at h2g2 {{Meat, state=expanded Food preservation Cooking techniques World cuisine Culinary terminology Thanksgiving food