UK recycling answer
Can pizza boxes go in recycling?
Usually, but only the clean, dry cardboard. Grease changes the answer.
Pizza box
Tear off greasy or food-stained parts. Put clean cardboard in paper/card recycling if your council accepts it; the dirty part goes in general waste.
Useful detail: A small amount of grease may be accepted in some schemes, but a soggy or food-covered box can contaminate paper and card.
Councils differ on food-stained cardboard. Check your local service ↗ · Example council guidance ↗
The safe shortcut
Separate the clean lid from the greasy base. If you are unsure, use the official local checker rather than trusting the recycling symbol alone.