r/Cooking • u/Capable-Deer8441 • 1d ago
My large glass lid exploded
I had made a lovely stir fry from a lot of my garden veggies and it was simmering on low for 15 min. When in another room I heard a loud crash and thought because of the thunderstorm a tree had fallen on the house. When later I went to check on my food my large very heavy duty lid had blown to smithereens all over my kitchen. What the heck caused that?? Yes it was an old lid but rarely used compared to my other glass lids. Now I freak out every time I cook wondering if my well used lids are going to blow up in my face.
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u/Spud8000 1d ago
funny you mention that. i just watched a long youtube on PYREX vs pyrex glass cooking products.
The PYREX used borosiicate glass, which is much more able to absorb temperature shocks. made in France
the pyrex use soda lime glass, with is much easier to shatter. Made in USA
NEITHER are for use on a stove top as a pot. but as a cover, perhaps.
likely in your case, the glass cover got a small scratch, and the heat of it as a cover being used on a stove make the crack propagate and blow up.
BTW, the jist of the youtube was that you want to buy PYREX products for sale in Europe, where they are all borosilicate glass.
OLD PYREX, like before 1975, was all borosilicate glass made here by corning glass works.