Preservation of Foods

Food preservation involves techniques to prevent spoilage, extending the freshness and safety of food. It works by slowing or stopping the growth of bacteria, molds, and yeasts that cause decay. Common methods include refrigeration and freezing (lowering temperatures to inhibit microbes), drying (removing moisture), salting or smoking (creating environments hostile to bacteria), and using preservatives like acids or chemicals. Proper preservation ensures food remains nutritious, safe to eat, and retains quality over time, reducing waste and improving shelf life.