CK The 4:1 Ratio Gigger
Don't get lost in a maze of formulas, for the classic dry martini (or any 4:1 drink), use the gigger. Mathematically calculated for an absolute 4:1 ratio. The smaller end is exactly 3/4 of an ounce, the larger end is exactly 3 ounces. The total of the two volumes is 3.75 ounces, the ideal capacity to fit your cocktail glass.

Based on a historical design, Aluminum, h
andwash only.