Can Glass Lid, Glass Bowl Bear High Temperature Steaming For A Long Time

Many households use tempered glass lid and glass bowls for daily steaming, but often wonder whether these glass items can withstand long-time high temperature steaming without safety risks. A qualified food-grade tempered glass lid is designed to fit regular steamer scenarios, and it can bear sustained steam heat within a reasonable time frame. However, uninterrupted long-term high temperature steaming will gradually weaken the internal stress structure of the tempered glass lid, increasing the spontaneous breakage risk of the glass lid when it encounters slight temperature fluctuations later. For glass lids with stainless steel wrapped edges, long-term steam immersion also accelerates moisture seeping into the edge gap, raising the chance of rust spots on the glass lid’s metal frame and affecting the sealing performance of the glass lid.

For ordinary glass bowls without tempering treatment, long-time high temperature steaming is absolutely unsafe. Even minor temperature changes can cause the glass to crack or shatter directly, which poses scalding hazards in the kitchen. Even for tempered glass bowls, prolonged steaming will accelerate material aging, shortening its service life significantly, just as it does to a tempered glass lid.

To use a tempered glass lid safely for steaming, it is advised to control continuous steaming time within a reasonable range, and avoid placing the hot glass lid on a cold surface or rinsing it with cold water immediately after steaming. Checking product markings before use and choosing a standard tempered glass lid can effectively reduce safety risks and extend the service life of your glass lid.