The Zyliss Hot Mug Brew and Travel Mug is perfect for the on-the-go individual. Simply put in the ground coffee, add hot water and press the fine mesh filter to brew fresh coffee. Pop the lid on and off you go with no need to remove grounds. Double-wall insulation means your freshly brewed cup of coffee will stay hot longer while the fine mesh filter keeps grounds firmly pressed and out of your drink. It's quick and easy; a great alternative to brewing a full pot of coffee. Use it on-the-go, at the office, camping or anywhere you enjoy coffee. It is also suitable for hot chocolate, tea and all kinds of beverages. BPA free. By Zyliss. Zyliss is a Swiss company that's been around for over 50 years. They're internationally known for their finely crafted hand-held kitchen tools. Legendary durability quality and engineering, Zyliss tools have been a favorite in the United States for over four decades. All of the Zyliss products are made of only the finest materials using the most modern production methods. Each Zyliss tool is precision made and undergoes stringent inspection before being introduced to the market.