There are several common properties of BOROSILICATE GLASS that you will see are very similar to normal glass, but you will also notice how unique and different they are at the same time. With a temperature range expanding from 572° F all the way down to -40° F, this glass is both heat resistant and cold proof (as well as freeze-proof). While it can withstand being heated up on your stovetop or in the microwave, this lab-grade borosilicate glass cannot be placed into an oven, under a broiler, or in any water bath. Also – because borosilicate glass has a very high shock resistance – it works well for cooking with extremely high temperatures while not having to worry about it cracking. And of course, we wouldn’t recommend placing this stuff into a dishwasher.