How much ice do I need per cocktail?

One number called “ice” easily hides three different uses. Serving ice remains in a highball, rocks glass, or crushed-ice drink. Working ice is loaded into a shaker or mixing glass and is normally not the same ice served to the guest. Cooling ice sits around bottles, cans, or containers. Keep these uses on separate shopping-list lines so a full bottle tub cannot silently consume the stock intended for drinks.

Classify every menu item before calculating. A built long drink may need only serving ice. A shaken drink served up may need working ice but no ice in the final glass. A shaken drink served over fresh cubes needs both. Pre-batched drinks can change the workflow again: some are served over fresh ice, while recipe dilution is handled separately.

Run a small setup test with the glass, scoop, and ice format that the bar will use. Fill one glass to the service line, weigh the ice without the glass, and repeat the test three times. Use the average in grams. The formula is: servings × grams of serving ice per drink ÷ 1,000 = kilograms of serving ice. If 80 highballs average 120 grams, the base requirement is 9.6 kilograms.

Cube shape matters because large cubes, small machine cubes, and crushed ice pack differently. Glass volume also matters: two drinks with the same liquid recipe can use different ice weights in a narrow highball and a wide rocks glass. A measured 100 to 160 grams is a practical planning range for many iced serves, not a promise for every drink. Test unusual glassware and crushed-ice serves rather than forcing them into the same rate.

For shaken or stirred cocktails, record how much ice the bartender loads per preparation and how many servings are made in that preparation. If one shaker load uses about 300 grams for two drinks, 60 drinks require 30 loads, or 9 kilograms of working ice before a service allowance. Measure the bar's normal scoop or tin instead of assuming every bartender works identically.

Working ice contributes chilling and dilution during preparation, but it should not be entered as recipe water as well unless the batch method deliberately replaces that step. For a pre-diluted batch poured over fresh cubes, calculate the added batch water in the recipe and the fresh serving ice here. This keeps liquid yield, working ice, and glass fill from becoming one confusing total.

The amount that reaches the bar can be lower than the amount purchased because handling, warm conditions, repeated opening, and service time cause melting. Choose a reserve that reflects the venue and workflow: delivery timing, insulated storage, distance to the bar, indoor or outdoor service, and whether more ice can be obtained during the event. A short indoor service beside a freezer needs a different allowance from a long outdoor setup.

Store each ice use in clearly labelled containers and replenish the bar in smaller loads. A service sheet should show opening stock at the station, reserve stock, and who moves the next container. Calculate bottle-cooling ice separately because the number of tubs and beverages controls that demand. Brorano's ice result is for in-glass use with a planning reserve, so cooling stock must be added outside the calculator.