A lot of home bartenders “eyeball” their pours of spirits and mixers when making cocktails. This isn’t a capital crime, exactly, but there are a few reasons why it’s a bad idea—starting with, most importantly, how it affects the quality of your drinks. The jigger ensures balanced flavors, and that's not all. Take a look.
Really Dough's Mark & Scott Take a Bunch of Shots, Do Blind Pizza Taste Test, Argue a Lot