This vacuum insulated device allows you to brew coffee no matter where are. In fact, the two-in-one cold brewer doesn’t even need to be kept in the fridge. Made from 100% Nominal Tritan, the brewing carafe is reusable and secure. Additionally, it is easy to clean. Moreover, the 18/8 superfine double wall stainless steel mesh provides a pure and smooth coffee brew. Made with copper double walled vacuum insulation, the mobile 40-ounce mug keeps your beverage cold for hours. The Asobu Coldbrew brewer and mug work with hot coffee too.