Commercial canning is a food preservation method that involves sealing food in airtight containers, typically metal cans, to prevent spoilage. This process includes cooking the food to kill bacteria and enzymes, which helps maintain its flavor, texture, and nutritional value over time. The canning process is widely used for various products, including vegetables, fruits, sauces, and soups. It allows manufacturers to distribute food safely over long distances and extend shelf life, making it a vital part of the global food supply chain.