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Sous-vide (), French for "under vacuum", is a method of cooking that is intended to maintain the integrity of ingredients by heating them for an extended period of time at relatively low temperatures. Food is cooked for a long time, sometimes well over 24 hours. Unlike cooking in a slow cooker, sous-vide cooking uses airtight plastic bags placed in hot water well below boiling point (usually around 60°C or 140°F). The method was developed by Georges Pralus in the mid-1970s for the Restaurant Troisgros (of Pierre and Michel Troigros) in Roanne, France. He discovered that when cooking foie gras in this manner it kept its original appearance, did not lose excess amounts of fat and had better texture. Another pioneer in the science of sous-vide is Bruno Goussault, who further researched the effects of temperature on various foods and became well-known for training top chefs in the method. As Chief Scientist of Cuisine Solutions, Goussault thoroughly developed the parameters of cooking times and temperatures for different foods. The sous-vide method is used in several gourmet restaurants under Thomas Keller, Jesse Mallgren, Paul Bocuse, Joël Robuchon, Charlie Trotter, Alessandro Stratta, Heston Blumenthalhttp://www.seriouseats.com/2009/10/understanding-sous-vide-cooking-heston-blumenthal.html, Clay Miller, and other chefs. Amtrak has used this method of cooking in the dining cars of its long-distance trains, and recently began using the method on its Acela Express trains. Non-professional cooks are also beginning to use vacuum cooking. ''Clostridium botulinum'' bacteria can grow in food in the absence of oxygen and produce the deadly botulinum toxin, so sous-vide cooking must be performed under carefully controlled conditions to avoid botulism poisoning. To help with food safety and taste, relatively expensive water-bath machines (thermal immersion circulators) are used to circulate precisely heated water. Differences of even one degree can affect the finished product. In the USA and other English speaking countries, the technique of vacuum packaging may be known as Cryovacking
[edit] About Sous Vide
A cooking technique that involves placing food in vacuum sealed bags and setting them in a low temperature water bath for an extended amount of time.
Sous vide cooking prevents moisture loss and retains nutrient and delicate flavors of foods. It is also thought to improve the texture . Types of food that benefit from this method of cooking include meat, fish and poultry.
The development of sous vide have greatly enhanced the ability to feed a large number of people at the same time because sous vide machines can be programmed to have the perfect doneness at a desired time.
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Vaccuum Sealed Plastic Bags