Draught beer
With good dispensing equipment and correct tapping, it is not necessary to divide up the tapping process and put the beer down in between. It will only get stale and warm.
Cloudy or flaky beer
Beer that is not naturally cloudy must be shiny and clear. If the beer is cloudy or contains flakes, the dispensing system has not been sufficiently cleaned beforehand.
Wrong detergent
If the landlord uses a normal household detergent for cleaning the glasses, this will become apparent through extremely large bubbles in the foam, just before the foam collapses very quickly.
Beer from different glasses
Never accept a beer that comes from different glasses. The beer loses carbon dioxide and gets warm faster.
7-minute Pils
A “7-minute Pils” can never be a good beer. Because drawing takes so long, a lot of carbon dioxide is lost and the beer tastes stale.