Can blister packaging boxes play a role in fruit freezing? The raw materials for blister food packaging boxes are pp, pet, and pvc. Many merchants don’t understand that they can keep them warm. Frozen, the use of blister boxes can promote sales. Packaging has the function of identifying and beautifying products, attracting purchases and guiding consumption. As an important part of formal products, if you choose to use blister boxes as packaging businesses, you need to pay attention to the packaging design and appearance of blister boxes. Image Design. Although blister packaging boxes can increase fruit sales, for the benefit of consumers, we still remind you to consider the correct method for fruit storage.