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Wine Press
A winepress is a device used to extract juice from crushed grapes during winemaking. There are a number of different styles of presses that are used by wine makers but their overall functionality is the same. Each style of press exerts controlled pressure in order to free the juice from the fruit (most often grapes). The pressure must be controlled, especially with grapes, in order to avoid crushing the seeds and releasing a great deal of undesirable tannins into the wine. Wine was being made at least as long ago as 4000 BC; in 2011, a winepress was unearthed in Armenia with red wine dated 6,000 years old. Press types Basket A basket press consists of a large basket filled with the crushed grapes. Pressure is applied through a plate that is forced down onto the fruit. The mechanism to lower the plate is often either a screw or a hydraulic device. The juice flows through openings in the basket. The basket style press was the first type of mechanized press to be developed, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressing (wine)
In winemaking, pressing is the process where juice is extracted from the grapes with the aid of a wine-press, by hand, or even by the weight of the grape berries and clusters.Jeff Cox ''From Vines to Wines: The Complete Guide to Growing Grapes and Making Your Own Wine'' pgs 131-142 Storey Publishing 1999 Historically, intact grape clusters were trodden by feet but in most wineries today the grapes are sent through a crusher/destemmer, which removes the individual grape berries from the stems and breaks the skins, releasing some juice, prior to being pressed. There are exceptions, such as the case of sparkling wine production in regions such as Champagne where grapes are traditionally whole-cluster pressed with stems included to produce a lighter must that is low in phenolics.J. Robinson (ed) '' The Oxford Companion to Wine'' Third Edition pgs 285-286, 545-546, 767 Oxford University Press 2006 In white wine production, pressing usually takes place immediately after crushing an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flash Release
Flash release (FR) is a technique used in wine pressing. The technique allows for a better extraction of phenolic compounds and wine polysaccharides. The treatment consists of heating the grapes at 95 °C (203 °F) for several minutes with vapour and then submitting them to a strong vacuum A vacuum (: vacuums or vacua) is space devoid of matter. The word is derived from the Latin adjective (neuter ) meaning "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmospheric pressur .... The technique can be applied to other type of juice extraction.Application of flash-release, a new extraction procedure (juice, pulp, essential oil); Brat P, 2001, Fruitrop (85), pages 11-13, Journée professionnelle Technofruits 2001, 2001-09-05, Montpellier, France. References Winemaking {{wine-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grape Stomping
A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began approximately 8,000 years ago, and the fruit has been used as human food throughout its history. Eaten fresh or in dried form (as raisins, currants and sultanas), grapes also hold cultural significance in many parts of the world, particularly for their role in winemaking. Other grape-derived products include various types of jam, juice, vinegar and oil. History The Middle East is generally described as the homeland of grapes and the cultivation of this plant began there 6,000–8,000 years ago. Yeast, one of the earliest domesticated microorganisms, occurs naturally on the skins of grapes, leading to the discovery of alcoholic drinks such as wine. The earliest archeological evidence for a dominant position of wine-making in human culture dates from 8, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Wine Press
The history of the wine press and of pressing (wine), pressing is nearly as old as the history of wine itself with the remains of wine presses providing some of the longest-serving evidence of organised viticulture and winemaking in the ancient world.J. Robinson (ed) ''"The Oxford Companion to Wine"'' Third Edition pp. 545–546 Oxford University Press 2006 The earliest wine press was probably the human foot or hand, crushing and squeezing grapes into a bag or container where the contents would ferment (wine), ferment.H. Johnson ''Vintage: The Story of Wine'' pp. 14–31 Simon and Schuster 1989 The pressure applied by these manual means was limited and these early wines were probably pale in colour and phenols in wine, body, and eventually ancient winemakers sought out alternative means of pressing their wine. By at least the Eighteenth Dynasty of Egypt, 18th dynasty, the ancient Egyptians were employing a "sack press" made of cloth that was squeezed with the aid of a giant tourn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurvat Itri
Horvat 'Ethri (; also spelled ''Hurvat Itri, Ethri, Atari''), or Umm Suweid (Arabic for "mother of the buckthorns"), is an archaeological site situated in the Judean Lowlands in modern-day Israel. Excavations at the site have uncovered the remains of a partially restored Jewish village from the Second Temple period. The site features an ancient synagogue, wine presses, cisterns, mikvehs (ritual baths), stone ossuaries, and an underground hideout system. Damaged and temporarily abandoned during the First Jewish–Roman War, the village was ultimately and violently destroyed during the Bar Kokhba revolt, as evidenced by a destruction layer and a mass grave found in a mikveh, which contained the remains of fifteen individuals, including one showing signs of beheading, as well as broken tools and coins. The site is identified with Caphethra, a village on the Judaean Foothills mentioned by Josephus as destroyed during a campaign by units of the Legio V Macedonica in the area in 69 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rioja Alavesa
Rioja Alavesa (), officially Cuadrilla de Laguardia-Rioja Alavesa, in Spanish, and Biasteri-Arabako Errioxako kuadrilla, in Basque, is one of seven ''comarcas'' that make up the province of Álava, Spain. It covers an area of 315.83 km² with a population of 11,360 people (2010). The capital lies at Laguardia. It is part of a notable wine growing region. Geography The Rioja Alavesa's northern boundary is formed by the Sierra de Cantabria and Sierra de Toloño, mountain ranges that separate it from the rest of Álava. To the south, its geographical limit is marked by the Ebro River, its border with the neighboring autonomous community of La Rioja. The Sonsierra of La Rioja includes the municipalities of Ábalos and San Vicente de la Sonsierra, located north of the Ebro River. Although geographically part of the river's left bank, these municipalities form a wedge of land technically belonging to the autonomous community of La Rioja. It thus divides the Rioja Alavesa in two: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ravensburg
Ravensburg ( or ; Swabian: ''Raveschburg'') is a city in Upper Swabia in Southern Germany, capital of the district of Ravensburg, Baden-Württemberg. Ravensburg was first mentioned in 1088. In the Middle Ages, it was an Imperial Free City and an important trading centre. The "Great Ravensburg Trading Society" (''Große Ravensburger Handelsgesellschaft'') owned shops and trading companies all over Europe. The historic city centre is still very much intact, including three city gates and over 10 towers of the medieval fortification. History Ravensburg was first mentioned in writing in 1088. It was founded by the Welfs, a Frankish dynasty in Swabia who became later Dukes of Bavaria and Saxony and who made the castle of Ravensburg their ancestral seat. By a contract of inheritance, in 1191 the Hohenstaufen Frederick Barbarossa acquired the ownership of Ravensburg from Welf VI, Duke of Spoleto and uncle of both Frederick Barbarossa and Henry the Lion. With the death of Conra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romania
Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to the east, and the Black Sea to the southeast. It has a mainly continental climate, and an area of with a population of 19 million people. Romania is the List of European countries by area, twelfth-largest country in Europe and the List of European Union member states by population, sixth-most populous member state of the European Union. Europe's second-longest river, the Danube, empties into the Danube Delta in the southeast of the country. The Carpathian Mountains cross Romania from the north to the southwest and include Moldoveanu Peak, at an altitude of . Bucharest is the country's Bucharest metropolitan area, largest urban area and Economy of Romania, financial centre. Other major urban centers, urban areas include Cluj-Napoca, Timiș ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Israel
Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Israeli-occupied territories, It occupies the Occupied Palestinian territories, Palestinian territories of the West Bank in the east and the Gaza Strip in the south-west. Israel also has a small coastline on the Red Sea at its southernmost point, and part of the Dead Sea lies along its eastern border. Status of Jerusalem, Its proclaimed capital is Jerusalem, while Tel Aviv is the country's Gush Dan, largest urban area and Economy of Israel, economic center. Israel is located in a region known as the Land of Israel, synonymous with the Palestine (region), Palestine region, the Holy Land, and Canaan. In antiquity, it was home to the Canaanite civilisation followed by the History of ancient Israel and Judah, kingdoms of Israel and Judah. Situate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenolic Content In Wine
Phenolic compounds— natural phenol and polyphenols—occur naturally in wine. These include a large group of several hundred chemical compounds that affect the taste, color and mouthfeel of wine. These compounds include phenolic acids, stilbenoids, flavonols, dihydroflavonols, anthocyanins, flavanol monomers ( catechins) and flavanol polymers (proanthocyanidins). This large group of natural phenols can be broadly separated into two categories, flavonoids and non-flavonoids. Flavonoids include the anthocyanins and tannins which contribute to the color and mouthfeel of the wine. The non-flavonoids include the stilbenoids such as resveratrol and phenolic acids such as benzoic, caffeic and cinnamic acids. Origin of the phenolic compounds The natural phenols are not evenly distributed within the grape. Phenolic acids are largely present in the pulp, anthocyanins and stilbenoids in the skin, and other phenols ( catechins, proanthocyanidins and flavonols) in the skin a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
