A jigger is a small measuring device used in bartending to accurately measure spirits and other liquids. Typically made of stainless steel, it usually has two sides: one for a standard shot (1.5 ounces) and the other for a half shot (0.75 ounces). This ensures that cocktails are mixed with the correct proportions, enhancing flavor and consistency. Using a jigger helps bartenders maintain quality control and adhere to drink recipes. It is an essential tool in the bar industry, promoting responsible serving and minimizing waste. Proper measurement is crucial for creating balanced drinks, making the jigger a staple in any bar or cocktail setting.