Are scratched glass bowls safe to use?
I'll be changing my dinnerware soon and I'm looking for something durable and non-toxic. Are glass bowls/plates more susceptible to spoon and fork scratches? Are scratched glass bowls/plates safe to use? Am I supposed to eat with wooden cutlery? The reason I ask this is that, I've got heatresistant cookware for oven and microwave and its user's guide says "don't use fractured,cracked or scratched products".
Best Answer
The reason not to use scratched glass bakeware is because the internal stresses encountered during heating can (rarely) cause the bakeware to violently fracture along the scratches. That doesn't really apply to glass tableware, which doesn't encounter the same temperatures (though cracked tableware, of multiple materials, will occasionally break from thermal stress in the dishwasher).
Incidentally, glass bakeware and tableware should be made from borosilicate glass, which cannot be scratched by steel cutlery.
EDIT: Also: Don't use glass tableware for hot food. Irrespective of safety issues, the thermal density and thermal conductivity of glass means that it will quickly wick away heat from any food which is placed on it. Glass plates are fine for salads and stuff, but they don't make good general-use dinner plates.
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1 Answer. Show activity on this post. The reason not to use scratched glass bakeware is because the internal stresses encountered during heating can (rarely) cause the bakeware to violently fracture along the scratches.Are glass bowls safe?
Unlike ceramics and clay, glass normally does not leach lead, cadmium, and other heavy metals. Unlike plastic, it does not leach hormone-disrupting chemicals. So, I want to praise you for looking into using glass food storage, glass cookware, and glass tableware for your kitchen.Can Pyrex be scratched?
Corning Pyrex (borosilicate glass) has a Mohs hardness of 5.5, about the same as steel. If the abrasive is harder than 5.5, it will scratch both steel & Pyrex.Can a spoon scratch glass?
Many people also prefer metal spoons when serving, thanks to their sturdy nature. However, metal spoons can scratch delicate surfaces, so you don't want to use them on nonstick or glass pans.REMOVE BAD SCRATCHES IN GLASS...FOREVER!!!
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