The uncertain fate of Tupperware.
The safety of vintage Tupperware and other plastic food storage containers depends on what they are made of, with Bisphenol A (BPA) being a potential health hazard. BPA exposure has been linked to a range of health conditions, and even low levels of BPA leaching from plastics have been shown to be harmful. Scratches and acidic foods can increase the risk of leaching. Discoloration of plastic containers can signal a chemical change has occurred, and damaged containers should be discarded. Glass, porcelain, ceramic, and stainless-steel containers are safer alternatives.