【High Borosilicate Glass】The glass jug can withstand the temperature from -4℉ to 302℉, might be heated directly with an open flame or induction cooker, or positioned right during the refrigerator for cooling. Stable without bursting, suitable for every type of chilly and scorching drinks. Look at that in the scale https://water-bag22108.blogofchange.com/20753507/considerations-to-know-about-the-best-alkaline-water-machine