This personal brewing system allows you to brew and drink right in the same mug. Handmade from borosilicate glass, the brewfish features a patented shut-off valve, drink-through top, and a double wall body with a single wall lip. The double-wall body adds insulation for both your brew and your hand, while the single wall lip makes for super comfortable sipping. The patented filter eliminates the contact between the water and coffee as soon as it’s pressed and its fine mesh steel works perfectly with even the most delicate tea leaves. That means that your last sip of coffee or tea will taste as delicious as your first. Want to make it portable? Add our earth lid to the takeout size (14 oz) and make it leak-tight.