这种「毒碗」，你家可能天天都在用

Core Viewpoint - The article highlights the health risks associated with using melamine tableware, particularly when exposed to heat, which can lead to the release of harmful substances like formaldehyde [1][2][3]. Group 1: Health Risks of Melamine Tableware - Melamine tableware, especially those that are colorful and lightweight, are often made from melamine-formaldehyde resin, which can decompose when heated, releasing formaldehyde [1][2]. - The heat resistance of melamine tableware varies; products from reputable manufacturers can typically withstand temperatures up to 120°C, while those from unregulated sources may only withstand around 100°C, posing a risk when used with hot food [2][3]. - A study from 2014 indicated that microwaving melamine materials increases the migration of formaldehyde, significantly shortening their lifespan compared to traditional heating methods, by more than ten times [5]. Group 2: Usage and Longevity Concerns - Melamine tableware is not suitable for high-temperature environments, such as microwaves or dishwashers, and prolonged use can lead to wear and tear, increasing the risk of harmful substance migration [4][7]. - A 2021 inspection by the Guangdong Product Quality Supervision and Inspection Research Institute found that melamine tableware used in student cafeterias often exceeded one year of use, indicating a higher risk of degradation and formaldehyde migration over time [6][7]. - It is advisable to replace melamine tableware that shows signs of wear or has been in use for over a year to mitigate health risks [8].