Borosilicate glass is a highly resistant material to thermal shock and dishwasher safe. Its chemical composition keeps the acidity level of any liquid or food contained unadulterated.
The void area between the two walls allows thermal insulation and prevents condensation on the outer surface. As a result, the temperature of hot liquid or food is maintained longer than that of other materials such as porcelain or ceramic. The same applies to cold liquids and food, the desired temperature is maintained for a longer time avoiding the effect of “sweating” on the table and hands.