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Question from Kat

Hi, I had been tempted to get some of the clear cookware, but now I’ve heard some complaints about the “glass” cookware exploding?

And that was the reason why the Visions cookware was originally discontinued?

I also heard that Pyrex bowls were originally made of borosilicate glass, which is very resistant to thermal shock (which is what can cause the glass to shatter), but are currently, made of soda-lime glass, which is not as resistant.

What I don’t understand is the inconsistency…Why are some people able to cook with on a stovetop just fine without anything breaking or shattering… while others have it explode? Based off what I read, it seems to be more than just a “thermal shock” issue, but I can’t tell.

Debra’s Answer

I don’t know where you got the idea that Pyrex or Visions can shatter while cooking. Some websites say “Glass cookware that is allowed to boil dry is likely to shatter” and I had this experience once. When I was a teen, my parents had a Pyrex pot in which my mother boiled water for coffee. One day I put it on and didn’t watch it and when it boiled dry, it did shatter. However, this does not occur during normal cooking.

Visions pots are so heavy that I can’t imagine that they would shatter under any circumstances.

Regarding the inconsistency, I don’t know what references you are looking at, but I would say that if there were problems with shattering, it had to do with the differences in how the pots were used rather than the pots themselves.

Used according to manufacturer’s instructions, I don’t see any problem with the safety of these pots and they are very nontoxic.

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