Keep the recipe and multiplier visible
Write down the original serving count and use one unit for all liquids before multiplying. As a concrete reference, the IBA Negroni specifies equal 30 ml measures of gin, bitter Campari and sweet red vermouth. Four such portions require 120 ml of each, before ice and the stated preparation.
| Input | What to preserve |
|---|---|
| Original recipe | Ingredient, quantity and unit |
| Serving change | One shared multiplication factor |
| Preparation | Ice, garnish and technique remain explicit |
Separate scaling from finishing
A larger amount is not automatically ready to pour. Shaking and stirring add water and change temperature; the arithmetic tool does not reproduce either process. Carbonated components need their own finishing plan. Keep garnish counts, glass sizes and any last-minute steps beside the batch note rather than hiding them in the total volume.
Siplore gives you measured recipes and unit choices for planning a home-bar menu. Check the actual recipe before scaling and make a small test serving before preparing a group batch. Nothing on this page transfers your calculation into My Bar or a saved recipe.