Recently, food safety incidents have occurred frequently. Every time an incident is revealed, it will let us know a new use of a chemical substance. We knew paraffin wax from rice, alum from sweet potato flour, dichlorvos from ham, Sudan red from chili sauce, formalin from squid, and formalin from milk powder. Let us get to know melamine. The food safety turmoil has not yet subsided, and the food packaging safety turmoil has risen again. The DEHA (diisooctyl adipate) in the plastic wrap and the bisphenol A in the toxic milk bottle have caused people to panic. The melamine tableware produced by using melamine-formaldehyde resin was replaced by urea-formaldehyde resin that can release carcinogens. In this way, the people are not only worried about my country's food safety, but also more concerned about the problems of food packaging.