How does a food service or restaurant operator determine the type of Bulk Food Container to buy? Here are some considerations to think about. When receiving food product, the food service operator should have an idea as to how to store the food in a way that should eliminate steps and that does not cause cross contamination. So the size and material does matter. Another consideration is the cover; does it need to be air tight? There are many names for this type of container, also known as food storage boxes, lexans and food bins.