Spare Bodum French Press Replacement Glass Beakers 

These are genuine Bodum Coffee Press Glass Inserts. Original Bodum press plunger beaker inserts made from Borosilicate glass, similarly to pyrex type glasses. Its the same type of glass used in many optical and chemical applications. Its high thermal and shock resistance along with its low rate of thermal expansion makes it an excellent choice for coffee press beaker applications. The glass remains absolutely neutral, even to aggressive chemicals. Withstands harsh dishwasher cycles much better than other glass materials, without getting scratched. Extremely resistant to water, alkalis, acids, and salt solutions.