Borosilicate glass is made up of about 15% boron trioxide, an ingredient that changes the behavior of glass and makes it thermal shock resistant. This allows the glass to resist extreme changes in temperature and that is measured by the “Coefficient of Thermal Expansion,” the rate at which the glass expands when it is exposed to heat. Borosilicate glass has the ability to go straight from a freezer to an oven with- out cracking and stand temperature of up to 500 °C or 932 °F. 

This product is made from borosilicate glass as the base, however it has gone through a special treatment to achieve this beautiful colour. For this reason it is limited to use for lower temperature liquid drinks and it is not recommended to be used for hot or boiling liquids drinks or prolonged exposure to heat sources like fire, microwave or dishwashers. When using borosilicate glass your beverage will taste better and the liquid inside remains pure, as borosilicate glass has low solubility, it keeps your beverage free from contamination.