Hosting a cocktail party with a shaker in your hand is a full-time job. Every drink you make in front of a guest is a drink you’re not spending on the conversation. Batching solves this.
Pre-batching is the practice of combining all the non-carbonated, non-perishable components of a cocktail in advance. Done correctly, it produces drinks that are indistinguishable from made-to-order — sometimes better, because the integration time mellows the alcohol edge.
What Batches Well
Stirred drinks batch beautifully: Old Fashioneds, Negronis, Manhattans, Martinis. They contain only spirits and modifiers — no carbonation to go flat, no citrus to oxidize.
Shaken sours batch well with some caveats. Pre-combine the base spirits and sweeteners. Keep the citrus separate and add it fresh per portion, or accept some oxidation loss if you’re batching same-day.
Sparkling drinks cannot be pre-built with carbonation. Batch the base and top with sparkling wine or soda per pour.
Anything with dairy or egg should not be batched beyond a few hours.
The Dilution Problem
When you stir or shake a cocktail, you’re adding water — typically 20–25% of the drink’s volume. A Negroni stirred to proper dilution is roughly 25% water by volume.
If you batch without pre-diluting, every pour from your batch pitcher will be under-diluted, and guests will be adding ice to compensate at inconsistent rates. The solution: add filtered water equal to 20–25% of your total batch volume before bottling.
Formula: Total spirit volume × 0.20 = water to add.
A 750ml batch gets 150–175ml of filtered water. Seal, refrigerate, and serve over ice — the drink will be correctly diluted from the first pour to the last.
The Citrus Exception
Fresh citrus juice oxidizes within 4–6 hours, developing a cooked flavor that significantly damages shaken drinks. For parties, press lime and lemon juice on the day of the event, no earlier. Keep it covered and refrigerated until service.
Scaling the Recipes on This Site
Every recipe here uses ounces per serving. Multiply by the number of guests (planning 1.5–2 drinks per person for a 2-hour window) to find your batch quantity. Add your dilution water, bottle, and refrigerate for up to 24 hours for stirred drinks.
The Ember Negroni at 20 servings requires 20 oz each of gin, Campari, and vermouth — 60 oz total spirits, plus 12–15 oz filtered water. That’s one 750ml bottle per spirit component and fits comfortably in a 2-liter bottle.
On the Day
Label your batches. Set out ice, glassware, and garnishes in advance. Assign one person to pour if the gathering is more than eight people. The host should not be behind the bar — that’s what batching is for.