A Sous Vide Cooker cooks food vacuum-sealed in a water bath. This makes it easy to cook food to your desired degree of doneness with no chance of overcooking! Sous vide cookers are also known as precision cookers or immersion cookers. All you do is attach the machine to a pot of water, select the time and temperature, then place your food sealed in a bag in the pot of water to cook. It is the easiest and best way to cook pork!