No sweat! This double-walled, thermal style holds the temp steady and surfaces dry. Elegant and strong borosilicate glass is highly resistant to thermal shock and dishwasher safe. Its chemical composition maintains an unadulterated level of acidity of any liquid or food contained. The vacuum area between the two walls insulates and keeps condensation at bay. As a result, the temperature of hot or cold liquids is maintained for longer than than in materials like porcelain or ceramic. Looks super cool too.