You can get a beer with the best possible foam with the simple push of a button. Just open your beer can and fit it easily into the BeerBubbler beer server. Press the foaming button on the back of the handle to dispense refreshing beer with a creamy, delicious foam top. You can even use the BeerBubbler to dispense beer without the foam. That's perfect if you have a fussy friend who prefers their beer that way.