The Bodum Biasca Infusion Jug features a filter that is integrated into the lid to keep the tea leaves in the jug when pouring tea. Made of heat-resistant borosilicate glass Filter integrated into the lid Removable plastic lid Dishwasher safe The Bodum Biasca Infusion Jug can also be used to create refreshing infused water and other infused drinks. Additionally, the lid sits tightly on the jug’s opening to properly store beverages. The Biasca jug is made of heat-resistant, ultra-light borosilicate glass and does not get cloudy in the dishwasher, even after repeated use. The removable lid is made of plastic with a silicone gasket and an integrated, finely meshed plastic filter.