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To obtain the desired brown or black crust, the meat surface must exceed 150 °C (300 °F) [1], so searing requires the meat surface be free of water, which boils at around 100 °C (212 °F). Although often said to "lock in the moisture" or "seal in the juices", in fact, searing results in a greater loss of moisture than cooking to the same ...
Sous vide cooking using thermal immersion circulator machines. Sous vide (/ s uː ˈ v iː d /; French for 'under vacuum' [1]), also known as low-temperature, long-time (LTLT) cooking, [2] [3] [4] is a method of cooking invented by the French chef Georges Pralus in 1974, [5] [6] in which food is placed in a plastic pouch or a glass jar and cooked in a water bath for longer than usual cooking ...
The water activity, a w, in a fish is defined as the ratio of the water vapour pressure in the flesh of the fish to the vapour pressure of pure water at the same temperature and pressure. It ranges between 0 and 1, and is a parameter that measures how available the water is in the flesh of the fish.
Saltwater is less dilute than these internal fluids, so saltwater fish lose large quantities of water osmotically through their gills. To regain the water, they drink large amounts of seawater and excrete the salt. Freshwater is more dilute than the internal fluids of fish, however, so freshwater fish gain water osmotically through their gills ...
In the United States, the Food and Drug Administration (FDA) regulates the amount of tuna in a can. [19] In 2008, some tuna cans dropped from 6 ounces (170 g) to 5 ounces (140 g) due to "higher tuna costs". [20] In the United States, 52% of canned tuna is used for sandwiches, 22% for salads, and 15% for casseroles and dried, packaged meal mixes ...
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A tuna (pl.: tunas or tuna) is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae family.The Thunnini comprise 15 species across five genera, [2] the sizes of which vary greatly, ranging from the bullet tuna (max length: 50 cm or 1.6 ft, weight: 1.8 kg or 4 lb) up to the Atlantic bluefin tuna (max length: 4.6 m or 15 ft, weight: 684 kg or 1,508 lb), which ...
Tuna penning causes a number of changes in the physical water qualities of surrounding areas. Areas surrounding tuna farms typically see a decrease in dissolved oxygen. This is a direct result of increased aerobic respiration from the high density of tuna present and from the increased decomposition of excess fish feed. [1]