Why did my Pyrex dish crack?

The thermal expansion of glass is such that the hot part expands but the cold part does not and the stress on the material causes dislocations in the molecular structure that spread into cracks and then full breaks in the glass. Pyrex used to be a borosilicate glass, which has a very low coefficient of expansion.

Can Pyrex dishes explode?

Pyrex is not resistant to thermal shock, therefore, there are instances where Pyrex glassware can explode when it is moved from a hot environment to a cold one and vice versa. In short, avoid exposing your Pyrex to extreme temperature changes at all times.

Can a glass dish break on its own?

Spontaneous glass breakage is a phenomenon by which toughened glass (or tempered) may spontaneously break without any apparent reason.

Does Pyrex crack in heat?

High Temps. Pyrex cookware is meant to withstand baking, but it cannot be trusted for use over 425 degrees. If you use modern Pyrex on a direct heat source, the result will likely be a cracked or exploded piece of glassware.

Why does glass randomly shattered?

Any flaw in the edge or glass surface can cause spontaneous breakage. Small cracks in glass grow over time. As the glass expands in the heat and contracts in the cold this crack will grow. Eventually, this change in temperature can cause the tempered glass to shatter.

What does it mean when glass breaks?

“A glass breaking in your house means good luck is coming your way. If you break glass intentionally then it doesn’t work that way but if you accidentally break some glass that means evil is leaving your house and good luck is going to come.”

Why do Pyrex bowls shatter when you heat them?

When a Pyrex bowl is heated or cooled rapidly, different parts of the bowl expand or contract by different amounts, causing stress. If the stress is too extreme, the bowl’s structure will fail, causing a spectacular shattering effect. The main way to avoid this effect is to be mindful of how quickly you change the temperature of Pyrex.

Can Pyrex explode in the oven?

There have been numerous cases of glass Pyrex-style baking dishes “exploding” due to sudden temperature changes, whether it occurs in the oven or on your countertop after it comes out.

What happens when Pyrex breaks unexpectedly?

When tempered glass—which is what most glass Pyrex bakeware is made of—breaks unexpectedly, it can be pretty shocking and potentially dangerous (not to mention frustrating when it ruins your Thanksgiving pie). Still, we don’t think you need to worry.

Do Pyrex dishes crack easily?

Not if it’s genuine Pyrex and not imitation. Cracks can happen if, for instance, you were to take a piping hot dish out of the oven and placed it straight onto a cold wet surface, or if you dropped it onto a hard floor. 25 insanely cool gadgets selling out quickly in 2021.