Asobu Coldbrew Insulated Portable 40oz Brewer is first of its kind in the cold brew market with a worldwide patent. Forget about diluted, bitter, and acidic standard iced coffee this brewer gives you that amazing freshly brewed coffee every time. Made with copper lining, double-walled 18/8 stainless steel and the brewing carafe is 100% Bpa free non-breakable Tritan with a reusable and easy to clean rust-free superfine stainless-steel mesh to give the smoothest coffee brew. Features: Coffee brewed hot is far more acidic than cold-brewed, according to a number of scientific studies, and some say cold-brewed coffee even has a sweeter taste because of its lower acidity. Use your standard medium course coffee grind and with our fine mesh you don’t need to worry about having granules in your cup Once the coffee is brewed it easily gets released into the on the go mug and your coffee stays fresh and cold for up to 24 hours Cold brew on the go; a portable and vacuum insulated way to brew