There should be rings forming with every mouthful of beer that leave a lace pattern as they descend. You should see a nice lacing pattern from the foam as you consume the beer. Test 3Īs you drink the beer look out for the lacing pattern. Look close to see if any of the bubbles are sticking to the glass. Observe how long the foam head last, and whether is lasts to the end. Look at the head on your freshly poured beer.Ĭheck whether the head is what you would expect from the beer. Get your favorite beer glass and fill it with your favorite beer and then observe. Your glass will need to be cleaned properly to revive it to beer clean. If your head is bad, there is no lacing and those bubbles are sticking to the inside of the glass, then there is a cleaning problem. No lacing down the inside wall of the glass and any bubbles clinging to the inside of the glass. There are a few tell-tale signs of a dirty beer glass apart from the obvious marks from fingers, lipstick or just bad drying.Ī poor head formation will indicate that your glass may not be as clean as you think. Our glassware cleaning may need a revamp. The towel you dry your glass with could leave behind fats and oils. Your fingertips could be leaving oils and other residues behind. In theory, and it will suffice to a degree, but the detergent, could be leaving the film that is causing your dead glass problem. We then finish with a swirl in the water or rinse off with clean water.

We give the glasses a good going over with a cloth, sponge or brush. We fill the sink with a hot water and detergent mix.

Just because your glass is not beer clean, does not mean that you are not cleaning your glasses. This causes the beer to lose its life and the head disappears, followed by the bubbles. A glass that has a greasy film inside will not allow the bubbles to flow freely, they will stick to the film. This is the culprit.Ī clean glass will let the bubbles flow free, keeping your beer lively and head intact. Detergents, milk and other drinks can leave a greasy film on the inside of your glass. The simple answer is that the beer glass you are using is not as clean as you may think.

How to fix flat beer