Well, it seems you're right that soiled pizza boxes can be recycled: https://www.sierraclub.org/sierra/yes-you-can-recycle-your-pizza-boxes https://www.sierracl

Well, it seems you're right that soiled pizza boxes can be recycled: https://www.sierraclub.org/sierra/yes-you-can-recycle-your-pizza-boxes https://www.sierraclub.org/sierra/yes-you-can-recycle-your-p... . But I think calling it a myth is not accurate. A significant fraction of recycling operations still refuse soiled pizza boxes (whether for good reasons or not), and it was widely held guidance until very recently that pizza boxes are not generally recyclable. So thanks for spreading the (relatively new) information!