When it comes to storing cannabis, plastic containers can be made from a variety of materials such as polypropylene, polyethylene, polycarbonate, and acrylic. However, the most commonly used materials for cannabis containers are polypropylene and polyethylene due to their lightweight nature, durability, and good moisture resistance. Although polycarbonate and acrylic are also used, they are not as popular as they are prone to cracking or shattering if dropped, being more brittle. It's important to note that not all plastics are safe for storing cannabis, as some may contain harmful chemicals that can seep into the flower over time. Therefore, it is highly recommended to use containers that are specifically designed for storing cannabis and made from food-grade materials.