Blister trays are commonly found in many factories. They are used to provide better protection for manufactured products. People unfamiliar with tray packaging often wonder how to classify different types of blister packaging. Blister trays feature a flat base with cavities for products or food. This type of blister packaging mainly offers convenience and protection, while a small number of items also use blister trays for aesthetic enhancement.

Food-grade trays can be seen in shopping malls and fast-food restaurants. Food blister trays can better improve the presentation of food and bring convenience.

Trays for electronic products are another category. They deliver functions such as anti-static performance, storage and convenient transportation. There are numerous recessed cavities on the surface of electronic blister trays. When electronic components are placed inside the cavities, the goods can remain stable during handling. Surplus products can be stored easily. These electronic trays can be stacked, facilitating item transfer during assembly line production.

Some electronic products are susceptible to static electricity. Special trays made of anti-static materials can protect products from static friction between components, known as anti-static blister trays, which are designed for electronic parts. Another widely used type is trays for digital products, simply called inserts. They are mostly applied to digital products such as earphones and chargers. They protect and beautify goods, helping boost product sales.