Jigger

A "jigger" can either be a measuring device used by bartenders, or a unit of measure (typically 1.5 ounces).

As a measuring device, the typical jigger is a metal, hour-glass shaped receptacle, which can measure two different amounts. The larger end would measure a "jigger" (1.5 ounces) and the smaller end would measure a "pony" (1 ounce).

Ounces versus ml

{ !oz !ml |- |1 tsp |5 |- |1/4 |7.5 |- |1/2 |15 |- |3/4 |22.5 |- |1 |30 |- |1 1/4 |37.5 |- |1 1/2 |45 |- |1 3/4 |52.5 |- |2 |60 }

External Links

• Design For A Jigger (C. P. Dungan, 1893) (Google Patents)