Some of the other glass lids say their glass is tempered. I don't see this in the description. Are these tempered?
1017972
I really couldn't say whether or not they are "tempered", but I have been using them for quite awhile now and have had no issues or complaints. In fact, I consider them to be both a good purchase and a good value!
1017973
I don't know if they are tempered but I have dropped them once or twice each and they did not break. Obviously they withstand high temperatures. Both are still serving me well.
634672
There are tiny little labels on the glass that indicate that it is indeed tempered.
1560046
Hi Amy,Yes, Glass is tempered for safety. Lid and knob are oven safe up to 400-degrees F.Angela...
1874359
Non-tempered clear glass. I wouldn't do business with this company based on my experience with customer service regarding a missing leg.
52037
No, the glasses, while thick, are not approved tempered glass for hot beverages.
2067264
Unless the manufacturer has changed the glass in the last year or 2, the answer is no. Mine are clearly stamped on the bottoms, "Not for use in oven" .
146700
I think they can withstand heat; just not from cold to hot. I think most glass is like that.
1579445
They certainly seem to be completely sealed. Either using the snap on, one time use lid or the more expensive gamma lid.I prefer the gamma so that access is available to the product stored with out the hassle of replacing the snap on lid.
634674
Sorry but I cannot tell if the glass is tempered or not. I'm just cautious and lay my hair styling tools on a heat resistant mat. So far nothing has cracked or shattered.
894893
I've broken a few over the past 40 or so years and don't notice any difference in quality or tempering. I do put them in microwave full of water and heat to boiling for tea. I don't believe they are tempered like clear glass arcoroc mugs which I have seen bounce off a concrete floor without damage.
2180663
Yes they are glass, and they are great, Ive used them a couple years in a row now for storing herbs I dried from my garden and they are nice and air tight.
2117225
I am not sure if this glass is tempered but when we have the firepit on it doesn't pop or spit out glass. I have been at other firepits that have and it is scary.
1619279
No, the glass is not tempered; I checked prior to making the purchase. I shopped around and asked questions about glass table tops before buying. I was told by the owner of a professional glass making company that tempered glass is not normally used for table tops. I purchased the 45-inch as a replacement for the one I accidently broke. It's been on my table in a very busy kitchen since November 2009. I am very pleased with it and have had no problems. I would buy it again without question.
778728
Mine does not have a sticker staying it is tempered which is supposedly required if the glass is tempered.
2253577
Mine is clear glass. An additional plastic lid is not included. Very high quality and aesthetically attractive!
1579441
They certainly seem to be completely sealed. Either using the snap on, one time use lid or the more expensive gamma lid. I prefer the gamma so that access is available to the product stored with out the hassle of replacing the snap on lid.
2226146
Yes, it is a nice well made (heavy) top, although I am unsure if it is tempered glass. I can highly recommend it. I can provide a photo if you'd like to see the actual product.