Plastic #7 (Other) Recycle Curbside Bottles, Tubs and Jars OK You can put plastic #7 bottles, tubs and jars in your recycling. Biodegradable Plastic Is Not Recyclable Vegetable-based plastics such as PLA are often labeled #7, but they are not recyclable. Find out what to do with biodegradable bags and compostable cups, plates & utensils.