Jiggers

 

— a device also known as a "bartender's measure". The classic jigger is made of stainless steel and is a kind of double-sided glass — two small cone-shaped glasses, fastened with bottoms. The cups have a different volume, which allows you to conveniently dose strong drinks and ingredients for cocktails. At the same time, jiggers with metric units and a volume ratio of 1 to 2 are mainly used in European countries; the most popular options for such measurements are 40/20 mL and 50/25 mL. However, products are also produced with English units, marked in fluid ounces (1 ounce — about 29 g); in them, the ratio of volumes can be different (for example, 1/2 and 3/4 ounces, 1 and 1.5 ounces, 1.5 and 2 ounces).