What is 4cl in a shot?

A "4cl" measurement refers to 4 centiliters, which is equivalent to 40 milliliters. In terms of a shot, this amount is slightly larger than a standard shot, which typically measures around 30 milliliters (or 3 cl). Therefore, a 4cl shot would be considered a "double shot" or a larger pour, often used in cocktails or for spirits served neat.