Tempered glass cover cannot be used for cooking

2025-09-12 2305

Due to its transparency, ease of washing, and durability, glassware is increasingly appearing in kitchens. However, some customers are not familiar with the detailed raw materials and application scope of glass products, and have mistakenly purchased and misused them, resulting in glass breakage and injury. The China Consumers Association issued a consumer warning yesterday, urging customers to be alert to the "kitchen killer" and to distinguish the raw materials when choosing glassware.

mistakenlytempered glass coverFor cooking purposes

In today's home life, customers often come into contact with three categories of glassware: regular glass, tempered glass, and heat-resistant glass. Most people know that regular glass cannot be used for high-temperature heating in ovens and microwaves, but they do not understand the difference between tempered glass lids and heat-resistant glass. They mistakenly use tempered glass lids for cooking, which can cause injuries after bursting.

钢化玻璃盖

There are no rules yet for heat-resistant glass tableware

Tempered glass has limited improvement in heat shock resistance, while heat-resistant glass has outstanding characteristics of high temperature resistance and temperature rapid cooling and heating changes, making it suitable for use as food processing containers and can be directly placed in microwave ovens and ovens for use.

But now the concept of "heat-resistant glass tableware and cooking utensils" is still unclear, and some operators intentionally confuse the concept, expanding the functions of general tempered glass and even general glass. Currently, China does not require merchants to label their products. Japan and other countries now have clear rules that tempered glass cannot be used in microwave ovens and ovens.

The product should be labeled accordingly

The Chinese Customer Association has issued a warning, reminding customers that there are currently no so-called heat-resistant tempered glass products or tempered heat-resistant glass products on the domestic market, and they should not be misled when choosing.

The China Consumers Association suggests that heat-resistant glass products should be labeled with corresponding indications, indicating the operating temperature, operating range, etc; Heat resistant glass products are obtained by annealing and cooling, with good thermal stability, high resistance to sudden temperature changes, high production difficulty, and high manufacturing costs. If customers find that the nominal heat-resistant glass is priced very low when making a purchase, they should consider its authenticity. In addition, glass cookware (tableware) manufacturers have an obligation to provide clear information on product raw materials, usage environment, and safety precautions. It is also necessary for home appliance manufacturers such as ovens and microwaves to indicate detailed functional requirements and scope of application for the selection of matching heating containers in the user manual.

Article source: Tempered glass coverwww.yinghuade.com