Bodum's insulated glassware is made from durable Borosilicate glass. Borosilicate glass, used to make scientific lab glass, is a strong heat-resistant glass that weighs less than traditional glassware. Borosilicate glass is dishwasher safe and will not become cloudy over time; you can rest assured that after 100 cycles, the glass will be as clear as the day you bought it. Simply treat it as you would any glass product and it will stand up to every day use. Dishwasher & microwave safe.
