What is food preservation means?

Food preservation refers to the processes used to prevent or slow down food spoilage, allowing it to be stored for longer periods. By employing various techniques, food preservation ensures its safety, maintains its nutritional value, and prolongs its shelf life, preventing its decomposition by microorganisms like bacteria, yeasts, and molds. Various methods of food preservation have been developed throughout history, and these approaches differ in their mechanisms and effects on food properties. These techniques include refrigeration, freezing, drying, canning, pickling, fermentation, smoking, and the use of preservatives, among others