Get the pub experience at home with the Beer Foamer. It separates the pouring process from the foaming process so you can achieve a crisp, bubbly beer with a soft dense foam that feels just like draft. How does it work? Pour no more than half an inch of your beer into the clear shatterproof container and top it with its copper top. Gently pour the rest of the beer into your glass, careful as to keep in the bubbles. Next, press the button on the copper top and watch as it froths up. Pour it onto your beer and enjoy with the set of four stackable glasses included in this set.