How do I plan cocktail prep and bar service for 20, 50, or 100 guests?

Begin with the whole beverage plan. Estimate total servings for the event using its length, adult and child mix, drinking profile, meal format, temperature, and availability of water, beer, wine, sparkling wine, long drinks, and alcohol-free options. Then choose what percentage of those servings is likely to come from the cocktail bar. This avoids treating every drink consumed by every guest as a cocktail.

The working formula is: estimated total event servings × cocktail share = cocktail servings. Round to a practical number that fits recipe yields and package sizes, but keep the original calculation visible. Revisit the share when cocktails are the main attraction, when table wine dominates the meal, or when the bar opens for only part of the event. State the assumption instead of presenting one universal number per person.

A concise menu makes purchasing, batching, labels, training, and service faster. For a private party, two alcoholic cocktails plus one strong alcohol-free option can provide useful variety without creating many low-volume ingredient lines. Larger events may support another choice, but every added recipe divides stock and demands another preparation path.

Assign a popularity split to the cocktail target. A two-drink plan might use 60 percent for the accessible highball and 40 percent for the more distinctive option. A three-drink plan could use 50, 30, and 20 percent. Adjust for the audience and mark interchangeable ingredients. The split is a planning hypothesis, so keep a limited flexible reserve in shared products instead of overbuying every niche ingredient.

For each recipe, multiply every ingredient by its assigned servings and convert the result to litres and packages. Keep fresh juice, syrup, spirits, liqueurs, still mixers, sparkling top-ups, dilution water, garnish, and ice on clear lines. Round purchasable packages up only after the millilitre need is known. Check whether package rounding already provides a useful reserve.

Divide the production into containers that the team can lift, label, chill, and replenish. A 96-serving target does not need to sit in one vessel. For example, a recipe allocated 58 servings could be prepared as two 29-serving batches, with each label showing recipe, final volume, servings, service pour, and additions made at the bar. Test the complete serve before multiplying the full recipe.

For 20 guests, one well-organised station and small labelled batches may be enough, depending on arrival pattern and drink complexity. At 50 guests, prepare a clear backup position for ice, glassware, mixer, garnish, and the next batch. At 100 guests, consider parallel pouring points, a separate pickup or alcohol-free route, and a person responsible for stock movement so bartenders are not repeatedly leaving the station.

Estimate peak demand as well as the event total. A welcome-drink rush can place many orders into fifteen minutes even when the overall cocktail count is moderate. Simplify garnishes, pre-stage clean tools and glasses, and write opening stock plus replenishment triggers. Keep water easy to access. Brorano provides the broad event quantities; the menu split and recipe sheets turn those numbers into a workable cocktail bar.