What is the function of a jigger in bartending?

In bartending, the primary function of a jigger is to measure liquor accurately. This tool is designed to ensure the precise pouring of spirits, which is crucial for maintaining consistency in cocktails. Accurate measurements help bartenders create balanced drinks, adhering to recipes and maintaining the intended flavor profiles, which is vital for customer satisfaction and operational efficiency.

By using a jigger, bartenders can easily measure standard servings, typically 1 ounce and 1.5 ounces, allowing for precise control over the alcohol content in a drink. This not only helps in managing inventory but also supports responsible serving practices, as it aids in preventing over-serving.