My oven only uses the added heat from the grill when I'm pre-heating, so this wouldn't happen-as it shouldn't.
If, however, you put it in after the oven has already reached the desired temperature, the grill element won't be on at full power all the time any more, if at all. A good oven should not do this, but some ovens may turn on the grill even when heating up the oven normally (non-pre-heating), to make it heat up faster from room temperature. The warning in the picture in the Question also says "do not use under a direct heat source".Īnother (weaker) hypothesis: they interpreted the French correctly. This function uses the grill on the "ceiling" to make it heat up extra fast (in addition to the normal heating element located outside the internal oven compartment), and this would result in too much direct heat on the pan. They go on to say that their dishes are safe for use in the refrigerator, freezer, dishwasher, microwave and oven. The latter would make sense: pre-heating is a special function in many ovens with its own button. The company claims that Pyrex dishes are indeed safe to go in the oven. It could be interpreted in two ways: "always preheat the oven if you're going to use the pan in it", or: "always preheat the oven before putting in the pan, not after putting in the pan". This means, "make sure to always preheat the oven before putting in your pan". It says, again thanks to Fabby:Īssurez-vous de toujours préchauffer le four avant d’y mettre votre plat en vitre. An hypothesis: they misinterpreted the French original written by Pyrex. Because it's so tough, you can place Pyrex dishes in your oven, refrigerator or freezer.As Fabby says, it must have something to do with a sudden change in heat. Pyrex Temperature Capacity The glass also tolerates extreme cold, remaining safely intact at temperatures as low as -313 degrees Fahrenheit. Re-cover the casserole with aluminum foil. So if you’ve bought new Pyrex glassware since 1998, it’s important to keep in mind that what you have is ordinary glassware and it needs to be handled with care. If your casserole was frozen with a layer of plastic wrap underneath the aluminum foil, remove it. The thing to remember with the Pyrex glass oven-safe temperature is your dish is not resistant to thermal-shock, and it could shatter when going from one temperature extreme to another. You can bake your pre-cooked casserole while it is still frozen, but you'll have to make a few adjustments to ensure it cooks evenly. One may also ask, can you put a frozen casserole dish in the oven?įrozen. Glass is preheated oven, microwave, fridge, freezer & dishwasher safe. Likewise, can Pyrex pie plates go in the freezer? Pyrex glass can handle almost every job in the kitchen and is versatile enough to use in the refrigerator, freezer, oven, microwave, dishwasher and on the table. Instead, remove the pie plate from the freezer and let it sit at room temperature while the oven preheats. Moreover, can a glass pie plate go from freezer to oven?įor example, if you froze a piecrust in a glass pie plate, then wanted to bake it, you shouldn't put the pie plate directly into a preheated oven.
A Pyrex pie plate is almost the American standard pie dish.
It is considered safe, however, to transfer a Pyrex dish directly from the refrigerator or freezer to a hot oven, provided it has been properly preheated - some ovens use the broiler element to heat up to the desired temperature.