Final answer:
Preservatives and low temperatures are two methods used to prevent food spoilage.
Step-by-step explanation:
Food can spoil very quickly due to the growth of microorganisms such as bacteria, yeast, and molds. To prevent spoilage, various methods can be used, including the use of preservatives and low temperatures.
Preservatives are substances that inhibit the growth of microorganisms. They can be natural, like salt and sugar, or synthetic, like sodium benzoate and sorbic acid. Preservatives can help extend the shelf life of food by preventing the growth of spoilage-causing bacteria, yeasts, and molds.
Low temperatures, such as refrigeration and freezing, can also slow down the growth of microorganisms and keep food fresh for a longer time. Bacteria and other microorganisms have lower metabolic rates at low temperatures, which slows down their reproduction and the spoilage process.
Learn more about Food spoilage prevention