Canning is a method of preserving food by sealing it in airtight containers, usually glass jars or metal cans. This process involves heating the food to kill bacteria, yeasts, and molds that can cause spoilage. Once sealed, the food can be stored for long periods without refrigeration, making it a popular choice for preserving fruits, vegetables, and meats. The canning process typically includes several steps: preparing the food, filling the containers, sealing them, and then processing them in a water bath or pressure canner. Proper canning techniques are essential to ensure food safety and maintain the quality of the preserved items, such as jams, pickles, and sauces.