Cách sử dụng
A preservative is a substance that is added to food or other products to help prevent them from spoiling or going bad. It helps to keep the product fresh for longer periods of time. For example, preservatives are added to jams, pickles, and other canned foods to prevent the growth of bacteria that would cause them to spoil. Preservatives can also be found in cosmetics, medicines, and other products that need to last for a long time. It is important to note that some people may have allergies or sensitivities to certain preservatives, so it is important to read labels carefully before consuming or using a product.