food preservation methods

Food preservation methods are techniques used to extend the shelf life of food and prevent spoilage. Common methods include refrigeration, which slows bacterial growth; freezing, which halts spoilage by keeping food at very low temperatures; canning, where food is sealed in jars and heated to kill harmful organisms; drying, which removes moisture to inhibit bacterial growth; and pickling, where food is immersed in vinegar or brine to create an acidic environment that preserves it. These methods help maintain food quality, safety, and nutritional value while allowing us to enjoy seasonal foods year-round.