Unfortunately, many of those materials are then coated with PFAS: https://www.webmd.com/diet/news/20170201/many-fast-food-containers-have-risky-chemical https:

Unfortunately, many of those materials are then coated with PFAS: https://www.webmd.com/diet/news/20170201/many-fast-food-containers-have-risky-chemical https://www.webmd.com/diet/news/20170201/many-fast-food-cont... Which have all of the same problems of plastic.