JOCO cups are made from high quality, non-porous, borosilicate glass. They are lightweight and resistant to extreme changes in temperature. Their superior durability makes them microwave and dishwasher safe. JOCO cups are free of all harmful chemical nasties including BPA, lead and cadmium. Glass doesn’t affect flavour so users will taste their coffee or tea, not their cup. Each cup features silicone thermal sleeves, silicone splash proof, nose-dome lids and are barista friendly.