is it borosilicate glass?
1486345
Borosilicate glass is sold under such trade names as Simax, Suprax, Kimax, Pyrex, Endural, Schott, or Refmex. PYREX is the brand used for baking, I've used in my kitchen for as long as I can remember (my mom used), and I have used for at least 30 years plus. Can be used for Oven., Microwave safe, dishwasher safe. I have never had an issues of breaking. LIBBEY has been in the business I believe since the early 1900's (you can look their company up) therefore, I found these to be reputable, and purchased. Hope this helps. They make perfect size tarts and pie desserts, pudding/custard, and everyone enjoys their own "dish". Borosilicate glass is sold under such trade names as Simax, Suprax, Kimax, Pyrex, Endural, Schott, or Refmex. PYREX is the brand used for baking, I've used in my kitchen for as long as I can remember (my mom used), and I have used for at least 30 years plus. Can be used for Oven., Microwave safe, dishwasher safe. I have never had an issues of breaking. LIBBEY has been in the business I believe since the early 1900's (you can look their company up) therefore, I found these to be reputable, and purchased. Hope this helps. They make perfect size tarts and pie desserts, pudding/custard, and... » Read More Borosilicate glass is sold under such trade names as Simax, Suprax, Kimax, Pyrex, Endural, Schott, or Refmex. PYREX is the brand used for baking, I've used in my kitchen for as long as I can remember (my mom used), and I have used for at least 30 years plus. Can be used for Oven., Microwave safe, dishwasher safe. I have never had an issues of breaking. LIBBEY has been in the business I believe since the early 1900's (you can look their company up) therefore, I found these to be reputable, and purchased. Hope this helps. They make perfect size tarts and pie desserts, pudding/custard, and everyone enjoys their own "dish". « Show Less
955795
Yes it is glass. There is a gasket where the straw goes through the lid and spills are prevented. Susan W.
1982017
Yes it is glass, that is one reason I order this stove compared to other on the internet. It is a great stove and does a really good job of heating the house besides looking so good doing it
2061756
no its glass and works great........just like the old ones I use to have years ago.....
551856
I do believe its glass. Its truly a wonderful set and especially for its low price. I promise you wont be upset with this purchase as i am very happy with it.
1205246
I have years using it and it doesn't look like ceramic, is glass, but you should ask to the manufacture not to a consumer. I believe glass is safer than metal and non stick materials.
2207910
Pyrex stopped selling borosilicate kitchen glass items. If you are looking for borosilicate bowls, try the bowls from the Czech company Simax here on Amazon. They are more expensive but of great quality and very useful.
985919
the borosilicate glass itself is freezer safe but there is a thermal barrier between the layers with an unknown sealant so I would not risk it
1246006
Its not 100% glass like transparent. It has a little bit of a yellow tinge to it.
1240114
Yep it is. They were good quality too. I bought them some time back though 2 yrs ago. Mine were glass. I still have em and they work fine.
470404
IT'S GLASS!!!! Not Plastic, and I'm POSITIVE. I have several of them, and they are ALL GLASS. When I purchased 2 of them one time, one had been shattered into a million pieces in the mail. Trust me, it's glass.
637363
I do not see any markings that indicate that these lids are BPA-free. The bigger concern is the composition of the glass itself. Corning divested its interests in 1998 and, with that, the original formula of borosilicate glass was changed to soda-lime glass, a cheaper and more volatile composition. http://en.wikipedia.org/wiki/Pyrex. I have both the original and current version of these ribbed glass storage bowls. The earlier is heavier and will likely outlast the modern version by generations.
316822
It is definitely NOT plastic. It is vitreous glass. It is beautiful, hard and resists high temperatures, but it is not unbreakable. It tends to shatter rather than break if it is dropped. In 30 years I've broken only 2 or 3 pieces.
413551
It is more glass-like. I am very pleased with this product. It takes patience to apply correctly.
1895256
It is glass, at least mine is glass. This is a really nice blender and a great buy!.
2098030
It looks like glass but nowadays is difficult to be certain. I would say yes based on the temperature of the material. Glass is always cooler than plastic.
523607
Yes the glass is black tempered safety glass. It is a very secure and attractive desk.