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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 ...
Low-temperature cooking is a cooking technique that uses temperatures in the range of about 60 to 90 °C (140 to 194 °F) [1] for a prolonged time to cook food. Low-temperature cooking methods include sous vide cooking, slow cooking using a slow cooker, cooking in a normal oven which has a minimal setting of about 70 °C (158 °F), and using a combi steamer providing exact temperature control.
External vacuum sealers involve a bag being attached to the vacuum-sealing machine externally. The machine will remove the air and seal the bag, which is all done outside the machine. A heat sealer is often used to seal the pack. Typically these units use a dry piston vacuum pump which is often considered a "maintenance-free" pump.
It is notable for the use of elaborate equipment that many non-professional kitchens lacked at the time (sous vide machines, vacuum-chamber sealers, culinary centrifuges, culinary torches, high-precision gram scales) and for its lush photography, particularly its tricky cross-sectional images of ovens, barbecue grills, and woks, apparently ...
The method is generally termed sous-vide, meaning that the meat is vacuum-packed and cooked in a water bath at temperatures below 100 °C. A special variant of sous-vide is cooking at a low temperature for a long time (LTLT) [11,12]. "LTLT cooking is a subset of sous vide. Sous vide is not also known as LTLT cooking.
Vacuum-packing stores food in a vacuum environment, usually in an air-tight bag or bottle. The vacuum environment strips bacteria of oxygen needed for survival. Vacuum-packing is commonly used for storing nuts to reduce loss of flavor from oxidization. A major drawback to vacuum packaging, at the consumer level, is that vacuum sealing can ...