A sous vide machine is a kitchen appliance that cooks food in a water bath at a precise temperature. This method ensures even cooking and helps retain moisture and flavor. The food is typically sealed in a plastic bag or jar before being submerged in the heated water. Using a sous vide machine allows for greater control over cooking times and temperatures, making it easier to achieve desired doneness. It is popular among both home cooks and professional chefs for preparing meats, vegetables, and even desserts with consistent results.