The tempered glass pot lid was placed in the kitchen, and I didn t cook, and I suddenly burst, why,

I don't know what state you are talking about, if the bursting particles are uniform, the size is about the same as corn kernels, this is tempered glass! If it is only a crack or a large broken particle (such as the size of a wine bottle cap) is unevenly cut, there are large and small, then it is basically tempered glass at most, but both have a characteristic that it will self-detolate when gathering cold and heat, and there is also an uneven internal stress distribution of the tempering itself, and there will be a potential probability of self-explosion, which is the practice within the industry! Hehe, this can be counted!

Professional! Ha ha.