Taste with your eyes. The presentation of the beer in the glass in terms of its foam head, clarity, brilliance and color is very important. In terms of flavor, the foam head is critical. Beer glass shape, material and thickness impacts on the longevity of the foam, and whether or not the aromas are caught and presented to the drinker’s nose. Thicker glasses will reduce the rate of beer warming thus tending to improve the persistence of the foam. Long cylindrical shaped pils glasses will have a higher surface to volume ratio, thus warm more quickly. Importantly, glasses with a relatively narrow brim compared to their body tend to concentrate aromas in the glass and present them to the drinker’s nose.
When pouring any style of beer or using any technique, use a clean glass. A dirty glass, containing oils, detergents, dirt or residual liquid from a previous beer, won’t give your beer a good stage to work from.