bull; MADE OF THE HIGHEST QUALITY BOROSILICATE GLASS - Borosil?s entire range of mixing and serving bowls is made of the highest quality borosilicate glass, which is extreme temperature resistant (-20?C in the freezer to 350?C in the oven) and extremely tough - so it can withstand daily use in your kitchenbull; MULTIPURPOSE BOWLS - You can use these glass mixing bowls to serve dals, subzis and curries, refrigerate leftovers, reheat meals in the microwave, bake in the oven, mix batters for cakes and pancakes, whisk eggs, set puddings in the fridge, etcbull; SCRATCH RESISTANT - Scratch resistant borosilicate glass ensures your serving bowls look new even after years of daily usebull; MICROWAVE OVEN SAFE - Our borosilicate mixing bowls can be used for reheating in the microwave or for baking in the oven They can withstand temperatures up to 350?C, higher than the highest setting on your oven