Over the centuries people have come up with a number of food preservation techniques. Food is vitally important to us because we need it to survive. Without basic preservation processes food would go bad within just a few hours. Food storage preservation includes everything from freezing and refrigerating to canning, dehydrating, and freeze drying. Preservation does one of two things: it either slows down the bacteria that cause food to go bad or it kills the bacteria entirely.
Over the centuries people have come up with a number of food preservation techniques. Food is vitally important to us because we need it to survive. Without basic preservation processes food would go bad within just a few hours. Food storage preservation includes everything from freezing and refrigerating to canning, dehydrating, and freeze drying. Preservation does one of two things: it either slows down the bacteria that cause food to go bad or it kills the bacteria entirely.