Our sustainable hamburger boxes are ideal for the takeaway area and we offer these in different materials. Made of certified cardboard, a very stable cardboard type and very sustainable and of course 100% biodegradable or from sugar cane - an eco-friendly alternative to polystyrene. This natural material has great thermal properties but doesn't trap condensation like plastic, so food stays hot and crispy. Freezer and microwave safe. We have one size for both materials in our range.