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In food processing, brining is treating food with
brine Brine is a high-concentration solution of salt (NaCl) in water (H2O). In diverse contexts, ''brine'' may refer to the salt solutions ranging from about 3.5% (a typical concentration of seawater, on the lower end of that of solutions used for b ...
or coarse salt which preserves and
seasons 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 pola ...
the food while enhancing tenderness and flavor with additions such as
herbs In general use, herbs are a widely distributed and widespread group of plants, excluding vegetables and other plants consumed for macronutrients, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal ...
,
spices A spice is a seed, fruit, root, bark, or other plant substance primarily used for flavoring or coloring food. Spices are distinguished from herbs, which are the leaves, flowers, or stems of plants used for flavoring or as a garnish. Spices ar ...
, sugar,
caramel Caramel ( or ) is an orange-brown confectionery product made by heating a range of sugars. It can be used as a flavoring in puddings and desserts, as a filling in bonbons, or as a topping for ice cream and custard. The process of caramelizati ...
or vinegar. Meat and fish are typically brined for less than twenty-four hours while vegetables,
cheese Cheese is a dairy product produced in wide ranges of flavors, textures, and forms by coagulation of the milk protein casein. It comprises proteins and fat from milk, usually the milk of cows, buffalo, goats, or sheep. During production, ...
s and fruit are brined in a much longer process known as pickling. Brining is similar to
marination Marinating is the process of soaking foods in a seasoned, often acidic, liquid before cooking. The origin of the word alludes to the use of brine (''aqua marina'' or sea water) in the pickling process, which led to the technique of adding flavor ...
, except that a marinade usually includes a significant amount of acid, such as vinegar or
citrus ''Citrus'' is a genus of flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, lemons, grapefruits, pomelos, and limes. The genus ''Citrus'' is nativ ...
juice. Brining is also similar to curing, which usually involves significantly drying the food, and is done over a much longer time period.


Meat

Brining is typically a process in which meat is soaked in a salt water solution similar to
marination Marinating is the process of soaking foods in a seasoned, often acidic, liquid before cooking. The origin of the word alludes to the use of brine (''aqua marina'' or sea water) in the pickling process, which led to the technique of adding flavor ...
before cooking. Meat is soaked anywhere from 30 minutes to several days. The amount of time needed to brine depends on the size of the meat: more time is needed for a large turkey compared to a broiler fryer chicken. Similarly, a large roast must be brined longer than a thin cut of meat.


Dry brining

Brining can also be achieved by covering the meat in dry coarse salt and left to rest for several hours. The salt draws moisture from the interior of the meat to the surface, where it mixes with the salt and is then reabsorbed with the salt essentially brining the meat in its own juices. The salt rub is then rinsed off and discarded before cooking. Food scientists have two theories about the brining effect, but which one is correct is still under debate. *The
brine Brine is a high-concentration solution of salt (NaCl) in water (H2O). In diverse contexts, ''brine'' may refer to the salt solutions ranging from about 3.5% (a typical concentration of seawater, on the lower end of that of solutions used for b ...
surrounding the cells has a higher concentration of salt than the fluid within the cells, but the cell fluid has a higher concentration of other
solutes In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. If the attractive forces between the solven ...
. This leads salt
ion An ion () is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by conv ...
s to diffuse into the cell, while the solutes in the cells cannot diffuse through the cell membranes into the brine. The increased salinity of the cell fluid causes the cell to absorb water from the brine via osmosis. *The salt introduced into the cell denatures its proteins. The proteins coagulate, forming a matrix that traps water molecules and holds them during cooking. This prevents the meat from
dehydrating In physiology, dehydration is a lack of total body water, with an accompanying disruption of metabolic processes. It occurs when free water loss exceeds free water intake, usually due to exercise, disease, or high environmental temperature. Mi ...
.


Fish

As opposed to dry salting, fish brining or wet-salting is performed by immersion of fish into brine, or just sprinkling it with salt without draining the moisture. To ensure long-term preservation, the solution has to contain at least 20% of salt, a process called "heavy salting" in fisheries; heavy-salted fish must be desalted in cold water or milk before consumption. If less salt is used, the fish is suited for immediate consumption, but additional refrigeration is necessary for longer preservation. Wet-salting is used for preparation of: * Salted
herring Herring are forage fish, mostly belonging to the family of Clupeidae. Herring often move in large schools around fishing banks and near the coast, found particularly in shallow, temperate waters of the North Pacific and North Atlantic Oceans, ...
, non-gutted, with hard or soft roe and heavily salted (20% NaCl brine, with final product containing around 12% salt), * Soused herring which is gutted and lightly salted (2–3% NaCl), without
roe Roe ( ) or hard roe is the fully ripe internal egg masses in the ovaries, or the released external egg masses, of fish and certain marine animals such as shrimp, scallop, sea urchins and squid. As a seafood, roe is used both as a cooked i ...
, *
Anchovies An anchovy is a small, common forage fish of the family Engraulidae. Most species are found in marine waters, but several will enter brackish water, and some in South America are restricted to fresh water. More than 140 species are placed in 1 ...
, which can be immersed in brine or wet-salted. After several years, the fish liquefies and can be processed into paste or anchovy butter, *
Caviar Caviar (also known as caviare; from fa, خاویار, khâvyâr, egg-bearing) is a food consisting of salt-cured roe of the family Acipenseridae. Caviar is considered a delicacy and is eaten as a garnish or a spread. Traditionally, the ter ...
and other types of
roe Roe ( ) or hard roe is the fully ripe internal egg masses in the ovaries, or the released external egg masses, of fish and certain marine animals such as shrimp, scallop, sea urchins and squid. As a seafood, roe is used both as a cooked i ...
.


Vegetables

Pickled vegetables are immersed in brine, vinegar or vinaigrette for extended periods of time, where they undergo anaerobic fermentation which affects their texture and flavor. Pickling can preserve perishable foods for months. Antimicrobial herbs and spices, such as
mustard seed Mustard seeds are the small round seeds of various mustard plants. The seeds are usually about in diameter and may be colored from yellowish white to black. They are an important spice in many regional foods and may come from one of three dif ...
, garlic,
cinnamon Cinnamon is a spice obtained from the inner bark of several tree species from the genus '' Cinnamomum''. Cinnamon is used mainly as an aromatic condiment and flavouring additive in a wide variety of cuisines, sweet and savoury dishes, break ...
or
cloves Cloves are the aromatic flower buds of a tree in the family Myrtaceae, ''Syzygium aromaticum'' (). They are native to the Maluku Islands (or Moluccas) in Indonesia, and are commonly used as a spice, flavoring or fragrance in consumer products, ...
, are often added. Unlike the
canning Canning is a method of food preservation in which food is processed and sealed in an airtight container (jars like Mason jars, and steel and tin cans). Canning provides a shelf life that typically ranges from one to five years, although un ...
process, pickling (which includes fermentation) does not require that the food be completely sterile 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. .


Cheese

Brine is used in two ways in cheese production: *
Brined cheese Brined cheese, also sometimes referred to as pickled cheese for some varieties, is cheese that is matured in brine in an airtight or semi-permeable container. This process gives the cheese good stability, inhibiting bacterial growth even in warme ...
s, such as halloumi and
feta Feta ( el, φέτα, ) is a Greek brined white cheese made from sheep's milk or from a mixture of sheep and goat's milk. It is soft, with small or no holes, a compact touch, few cuts, and no skin. Crumbly with a slightly grainy texture, it ...
, are pickled in brine. *
Washed-rind cheese Washed-rind or smear-ripened cheeses are cheeses which are periodically treated with brine or mold-bearing agents. This encourages the growth of certain bacteria on their surface which give them distinctive flavors. There are hard and soft washed ...
s, such as Munster, are washed with brine during the production process.


See also

* * *


References


External links


Brining
on Cooking For Engineers - a discussion on what happens to meat as it brines (with reader comments) {{Salt topics Cooking techniques Food preparation techniques Salted foods Culinary terminology