The glass server that you can use for various brewing methods has a volume of approximately 500 ml. The mouth diameter of the product is 7.5 cm. The product has a lid. Made from borosilicate glass. Borosilicate glasses are known to have very low coefficients of thermal expansion, making them more resistant to thermal shock than other common glasses. Borosilicate glass is resistant to -20 ° C / 550 ° C.