A mug full of beer foam? I admit my pouring skills are a bit crap but apparently the internet thinks my poor pours are cool. It’s called a Mlíko pour. It can only really be poured from a Czech Side Pull beer faucet which are not at most beer bars. According to City Beer Store, an expert tome, “A “milk” pour is like drinking a velvety cloud of sweet foam. The faucet creates a creamy, highly drinkable beer froth which is best enjoyed quickly before it settles.”
So check out a bit of history HERE about this dispense method. Then Google image Mlíko to see the photos.