- Different in raw material\nUnlike other glasses, heat-resistant glass uses material that contains strong heat resistant properties which could withstand sudden change in temperature.\n- Different in manufacturing process\nHeat-resistant glass is produced in temperatures above 1500℃ which makes it harder to manufacture. It also contains borosilicates which makes it capable of withstanding sudden change in temperature, but the costs are very high.(Lock & Lock BOROSEAL thermal shock strength 120℃)\n- Difference in use\nHeat-resistant glass can withstand sudden change in temperature, thus it could be used not only in a refrigerator, a microwave and a dishwasher but also in a 400℃ oven.\n- Safer with 100% heat-resistant glass\nNormal glass or tempered glass may, with small scratches, be broken and scratches when there is a themal or physical shock. Lock & Lock BOROSEAL uses heat-resistant glass for more safety.\nUSE & CARE\n- Heat resistant glass is safe for use in the oven and microwave, expanding your range of cooking from roasts ristto, spaghetti, baking and more!\n- Curries and stews can be easily stored in the refrigerator and reheated later.\n- Silicone handles remain cool even after microwave use for increased safety.\n- Made of high quality borosilicate glass.\n-Clear body to easily see content with no need to remove the lid.