The tolerance temperature of most melamine resin tableware is between -30℃ and 120℃. If the temperature exceeds 120℃, if baked on fire, the porcelain-like tableware will release formaldehyde due to high temperature, causing poisoning.

2, made of inferior materials

Porcelain-like tableware is complicated to make and easy to be adulterated. In order to reduce production costs and profiteer, many enterprises reduce the proportion of melamine resin, or use toxic urea-formaldehyde molding powder to replace normal resin raw materials. Urea-formaldehyde resin is obtained by the reaction of urea and formaldehyde. At a certain temperature, urea and formaldehyde will separate and release formaldehyde, which is harmful to human health. Tableware made of this substance is usually marked with the word "UF" and cannot be used to hold food for immediate consumption.