Is this glass made of borosillicate (instead of soda lime)? I want to use this glass for heating up water in microwave.
344302
My wife puts hers in the microwave all the time....she loves it. Has had hers for over a year.
344303
It's only claimed to be "a thick glass," so I would assume it is not borosilicate. In addition, the Teavana site says it's not microwave safe.
1392442
I thought the exact same thing. Apparently at some point they changed to soda lime silicate. Coincidentally at that same point, there have been more cases of Pyrex shattering. Pyrex is no longer using the same quality of products. Pies should not have to suffer the same fate mine did. Soon I will be selling those silicon bracelets for pie awareness..Please see this article: http://www3.nd.edu/~rroeder/ame60646/slides/glasscookware.pdf
1365626
Do not put this on any heating element. It is not heavy enough glass. If you don't drink it while hot, heat it in the microwave. It is fragile.
1826613
Simple answer - yes, it's made of Pyrex (borosilicate glass). But you will have a trouble to remove it from the stovetop.Just curious - why someone would put the teapot on the stovetop? if you need the glass kettle, just look for one, for example - "Yama Glass Chinese Water Kettle" here, on Amazon :)
1938411
I prefer Corningware over ceramic if you are talking ceramic bowls you see at craft fairs and Art shows. I know some countries and artists use glazes that may have lead in them. I trust Corningware because I have never had it break in either an oven or microwave and their glazes meet USA safety standards. Some off brand ceramics do not heat safely especially in the microwave. Hope this helps.
1884815
Yes. The glass piece by itself should be ok in the microwave. Just please don't forget to remove the metal strainer.
2209074
It appears to be real glass, but it is a lot thinner than Pyrex. It feels very fragile. I would not buy it again.
692940
I wouldn't recommend it. We love these glasses, but we treat them very gently (no microwaving/no dishwasher). There is a small silicon seal at the bottom of the glass that keeps moisture out of the space between the two glass walls, and I was concerned if I stuck it in the microwave it might not be good for it. I'm sure the glass can stand up to the microwave - I may be overly cautious. We boil the water in a electric kettle, fill the glass, then submerge the infuser. We found pouring the water over the infuser forced the tea into the fine holes and made it more difficult to clean.
1637422
I just heated a glass of water in the microwave for 1 min & 5 sec. The water got very hot, enough to make tea that was hot but not unthinkably hot, and the glass did not break. In fact, I could hold it in my hand without discomfort. I would say you are fine to heat water in it and not have an issue. Good luck.
1554377
I have had two borosilicate glass containers that were labeled as freezer to oven/microwave safe shatter on me when trying to do what you ask. So, no matter how many times you get away with doing it, and no matter what the manufacturer says, be aware that shattering can and does occur.
476667
As stated- "it transitions flawlessly from oven to microwave to freezer to dishwasher" If you just buy glassware made from borosilicate glass, you won't have to worry about what you can and can't do. Modern PYREX is made from soda lime glass which is more durable but subject to shattering or exploding when subject to temperature changes (freezer to oven). FOLLOW the instructions to the letter on the bottom of your PYREX! (if you choose to use this product)
59858
I believe so, its a clay mug. I have only put it into the microwave once and there was not damage to it. To that extent, I say I am not sure.
1502507
Yes, but I recommend heating the water inside the mug. I've cracked several by pouring very hot water in them or by washing with cool water when still very warm. I never had one break when heating water in a microwave oven, even to the boiling point (by accident).
2112318
No they're not. When you're brewing Kombucha, the temperature change wouldn't be sufficient to crack regular glass, so borosilicate glass isn't necessary.
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.
2243111
Yes. I microwave with the dishes frequently. I have a Spanish mother, and my grandparents always had this tempered glass that was French called Duralex. The glasses I have are of that brand. The rest of my dishes are thie Libbey Crise, which are made in Mexico. I have the salad and dessert plates and round dinner plates. I also ended up ordering the squared ones to mix things up. I believe that you will be happy with them.
1694713
It is a heavy plastic. I prefer this as most of my glass measuring cups are chipped along the rim. I don't know if it could be used it the microwave/for example to melt butter. I wouldn't use it for that purpose.