A Perfect Cognac Glass
A Perfect Cognac Glass
The traditional measure of cognac is to place the glass on its side and fill to the brim. An equally popular measure is to place the glass vertically and fill to point of maximum surface area. For a given glass curvature and stem length, by adjusting the base width we can create the perfect cognac glass, where the two measures are equal. Varying the stem length will adjust the base so that the measure is not changed.