The packaging of dairy products must have barrier properties, such as oxygen resistance, light resistance, moisture resistance, fragrance retention, odor prevention, etc… Ensure that external bacteria, dust, gases, light, water and other foreign objects cannot enter the packaging bag ja varmista myös, että maitotuotteiden sisäiset vesi, öljy, aromaattiset komponentit jne. At the same time, packaging should have stability, and the packaging itself should not have odors, components should not decompose or migrate, and it must also be able to withstand the requirements of high temperature sterilization and low temperature storage, and maintain stability under high ja matala lämpötila olosuhteet vaikuttamatta maitotuotteiden ominaisuuksiin.