When you are browsing the shelves at the off-licence trying to decide what size bottle to buy, it helps to know how much you will need for your event. The amount needed will depend upon the size of your shots and the types of drinks you are making. Shot sizes can vary, and bottle sizes vary widely as well.
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The amount of liquor in a shot varies depending upon the person pouring it or the restaurant serving it. A shot can be 29.6ml to 49.6gr of liquor. A 28.4gr shot is known as a pony shot and a 1 14.2gr shot is known as a jigger.
Deciding the Size of Shots
The number of 29.6ml shots in a litre bottle is more than the number in a fifth. A 49.6gr shot makes it harder to figure out the number available in a bottle. Most bartenders tend to use a shot glass that measures out 42.5gr. To figure out how many ounces an unmarked shot glass holds, pour water in the glass and then pour it into a measuring glass with ounce markings.
Types of Drinks
Different drinks call for different amounts of liquor. While a recipe may call for a "shot," the actual amount of liquor in that shot can vary. Check a bartender's recipe book for recipes that call for ounces rather than shots.
Number of Shots
A 750ml bottle--a fifth--holds a little more than 7116gr shots, or 16 42.5gr shots. For a litre bottle, you can get 9384gr or 22 42.5gr shots. Round down to account for any spillage.
Most liquor is sold as a fifth (750ml) or a litre (1,000ml), but you can also buy larger or smaller bottles. To figure out the shots in a bottle, take the number of ounces in the bottle and divide it by the number of ounces in your shot. Odd-sized bottles should be easy to figure out in this manner.