Why does glass break by itself?

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A far less common—but often cited—cause of spontaneous glass breakage is nickel-sulfide (NiS) inclusions in tempered glass. ... While nickel-sulfide inclusions may be present in annealed or heat-strengthened glass, the problems they cause are specific to tempered glass because of the tempering process.
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You can bake a perfectly good cake in a Pyrex bowl, and for some specialty cakes you can save a lot of time and effort by using the bowl to achieve a dome shape. Remember to oil the bowl before you bake, allow extra time, and be careful not to "shock" the glass with sudden temperature ....
Exploding glass is a phenomenon by which toughened glass (or tempered) may spontaneously break (or explode) without any apparent reason. The most common causes are: ... Binding of the glass in the frame, causing stresses to develop as the glass expands and contracts due to thermal changes or deflects due to wind.
about 850°FHow hot can you get glass? InItIal Heat: room temp to 1000°F (538°C) Until glass reaches a temperature of about 850°F (454°C), it can shatter (undergo thermal shock), if heated too quickly or unevenly..
Anchor Hocking glass food storage is dishwasher safe, microwave safe, freezer safe and oven safe up to 425°F..
Substitutes. Nothing is quite the same as glass noodles, with their translucent appearance and unique texture, but they can be replaced in most recipes in a pinch. For soups, cold salads, and spring rolls, try thin rice vermicelli. For stir-fries, use thin egg noodles, soba noodles, or angel hair pasta.