The canning process involves preserving food by sealing it in airtight containers, typically metal cans or glass jars. This method helps prevent spoilage by eliminating air and bacteria, allowing food to be stored for long periods without refrigeration. The process usually includes cleaning, cutting, and cooking the food before placing it in containers, which are then sealed and heated to kill any harmful microorganisms. After sealing, the containers are heated to a specific temperature for a set time, which varies depending on the type of food. This heating process creates a vacuum seal as the contents cool, ensuring that no air can enter. Properly canned foods can last for years, making canning a popular method for preserving seasonal produce and homemade meals.