Why did my Pyrex explode?

Online Answer
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.Jan 30, 2007
Related Questions 📌
To clean up broken glass, use a broom and dustpan to sweep up the broken shards. For small pieces of glass, try wiping the area with a damp paper towel folded in half. Alternatively, press the area with a slice of bread or a piece of duct tape. Avoid using a vacuum, since the glass can end up damaging your machine.
The best way to clean up glass any surface including inside of an oven is to use some very soft bread. Use it like you would use a sponge essentially. The softness of the bread will cling to anything else it's a class and it will create a safe environment to cook in again (for the most part).
The European made bakeware stayed intact at 450 degrees, but five out of six pieces shattered when the temperature was increased to 500 degrees. ... For example, a Pyrex label says "Avoid extreme temperature changes." But, it also said the bakeware is oven and freezer safe.Jan 26, 2011
Pyrex® glass, since 1915, offers a complete solution to all cookware requirements from preparation, to baking and storing. Superior quality, heat resistant borosilicate glass, all products from the Pyrex® glass range are guaranteed 10 years.
It is considered safe, however, to transfer a Pyrex dish directly from the refrigerator or freezer to a hot oven, provided it has been properly preheated — some ovens use the broiler element to heat up to the desired temperature. A Pyrex pie plate is almost the American standard pie dish.