what is the temperature rating of glass lids?
1082561
I really don't know that for sure. But obviously it high enough to withstand cooking temperatures at the boiling point. Which is at least 212 degrees Fahrenheit
1132441
Not real certain about that. It is my understanding yes up to 450 degrees, but I have not used them in the oven. Just in the habit of resorting to my bakeware.
932252
Ocean Breeze, I have this newest Snapware Glasslock set (just bought 2 on sale at Costco for $24 each on Friday, 8/31). The # imprinted on the lids (visible under one of the flaps that snap the lid down) is 5. I just looked at my old set(s) (bought at Costco within the last 2-3 years) and they also read "5." I just googled it ("which #'s of plastic are safe/unsafe?") and the first hit indicates that #'s 2,4, & 5 are the safest. Here's the link: http://ecovillagegreen.com/1812/what-are-safe-plastic-numbers-to-use/
1331959
I have not idea, other than the lids work as well as they did when I first received them. I like them very well!!!
1226236
I have used up to 400 degrees without the lid, of course, but if I had to advised I'd say not above 375 would be safer. I have noticed that there is a actually a 'melting' effect of the actual black tray when in the oven on such a high temp. Other then that, I love my Glad Cooking Ovenware...I buy them by the box load!!
1356591
These are better for handling pot lids than pulling even the thinnest cookie sheet out of the oven. I would definitely not trust them up to 425 degrees much less 600!
21318
I don't see any problems at 450 temperatures or above. These are good heavy pans. (Heavier then the average.) They should last a long time.
1406000
Hi, Well I'm not sure, But I would say 60 degrees. You have to buy them. They work great. You will never buy a better brand.
1111921
According to the Product Description, "Usable in heats up to 420 degrees F." I would surmise that applies to microwaves, but it isn't specified in the ad copy. However, most heating scenarios would cause pressure to build so, if one of these lids is sealed tight to a container, there would likely be a sudden and messy, if not hazardous, release of that pressure. I have not yet purchased this product, so I don't know if there are additional instructions included that might allow such use.
571637
The glass would be, but I'm not sure why you'd microwave them. I really don't know about the lids. Since they're dishwasher safe, I'd imagine it would be, but, I'd write to the manufacturer to be sure. (EuroCuisine).
151591
I believe it's 400°. To be honest, however, I have a very tiny oven and have never put a lid inside while baking. I used tinfoil. On the stovetop it seems just fine, though I do use their hot pads and handle mits.
1880502
Duralex plastic lids are BPA free. They can sustain temperatures from -4°F to 158°F, and are microwave and dishwasher safe.
1151493
I do not know the exact temperature but they do not get very warm. Since plastics vary in thickness and overall density I would try to ask the manufacturer if you want to be sure.
1515590
I have baked with the various sizes of Pyrex rectangular ware (and circular pie plates) for a long time at high and low temperatures. I don't use the plastic lids or aluminum foil because they both outgas into the food and make me ill. If a lid is needed, I use Corning Ware with glass lids. I wonder if your question is written incorrectly. I don't understand why there would be a question about baking for long periods at a temperature under 400F, but I can understand why someone might wonder if the Pyrex can be used for long baking periods at temperatures over 400F.
1358036
I believe that a normal room temp 70-75 or so they would not melt or in the refrigerator...Will keep several months.
1989650
Ocean Breeze, I have this newest Snapware Glasslock set (just bought 2 on sale at Costco for $24 each on Friday, 8/31). The # imprinted on the lids (visible under one of the flaps that snap the lid down) is 5. I just looked at my old set(s) (bought at Costco within the last 2-3 years) and they also read "5." I just googled it ("which #'s of plastic are safe/unsafe?") and the first hit indicates that #'s 2,4, & 5 are the safest. Here's the link:http://ecovillagegreen.com/1812/what-are-safe-plastic-numbers-to-use/
670387
I have this item in a un-air conditioned garage in San Antonio Texas and it has been fine for the years that I have had it. The temperature ranges from the 20's in a bad winter to the 110's in a bad summer. The one bit of advise that I would give is to replace the chain that attaches the lid to the main body as this was steel and not stainless steel and it did discolor the inside temporarily until we changed it which is very easy to do and cost less that a Dollar. Hope that helps Andy Cone.