Can I put a cardboard pizza box in the oven?

Don't put the whole box in but you can remove the lid and heat the pizza on the cardboard if you stay below 400 degrees. The auto-ignition point of paper/cardboard (where it will burn) is around 450F. Also make sure there is no plastic wrap/plastic pieces to keep the lid from touching the pizza etc in the box when you put it in the oven. read more

Likely. Pizza boxes can go into the microwave, not the oven. Remove before it starts a fire. Pace. read more

The cardboard boxes are just used to keep the pizza hot or warm, but not necessarily to be able to heat the pizza in it if it’s cold. Secondly, heating your pizza in its cardboard box will definitely ruin the taste of the pizza for you. read more