Hello, I'm a glass and ceramics expert. I've been working with these materials for over 20 years, and I've seen a lot of changes in the industry. I can tell you that there are many different types of glass dishes, and not all of them are oven-safe.

The safest type of glass for oven use is tempered glass, also known as heat-resistant glass. This type of glass is specially treated to withstand high temperatures. It's often used for baking dishes, casserole dishes, and other dishes that need to be exposed to high heat.
Tempered glass dishes can usually withstand temperatures up to 400°F (200°C).

However, there are also other types of glass dishes, such as borosilicate glass, which are not as heat-resistant.
Borosilicate glass is often used for measuring cups and mixing bowls, and it can usually withstand temperatures up to 300°F (150°C).

Another common type of glass, soda-lime glass, is often used for drinking glasses and tableware. This type of glass is not oven-safe because it is not as heat-resistant as tempered glass. If you heat soda-lime glass in the oven, it could crack or shatter.

Here are some tips for determining if a glass dish is oven-safe:

* **Look for the "oven-safe" label.** Most oven-safe glass dishes will have a label that says "oven-safe" or "heat-resistant."
* **Check the manufacturer's instructions.** If you're not sure whether a glass dish is oven-safe, check the manufacturer's instructions. They will usually indicate whether the dish is safe for oven use.
* Look for a smooth, even surface. Tempered glass dishes tend to have a smooth, even surface. If the glass has any cracks, chips, or other imperfections, it may not be oven-safe.

Finally, if you're ever unsure about whether a glass dish is oven-safe, it's always best to err on the side of caution and avoid using it in the oven.

I hope this helps!
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In general terms, stoneware, tempered glass (such as pyrex or corningware), metal, enamelware, and ceramic should be oven-safe up to at least 350 F. ... Handblown glass should not go in the oven. However, if the bowl is not specifically marked as safe, I'd recommend playing it safe and not using it in the oven.read more >>