Reference

Diluting to a target gravity

Quick answer

Water to add when the wort came out stronger than the recipe called for.

This section holds 15 worked pages. Every figure comes from the same formula library the calculators use, and each page states whether its numbers rest on a published standard or on brewing convention.

Every page below is worked out from the published equations in this site's formula library, not copied from another calculator. Where a figure rests on brewing convention rather than a published standard, the page says so on the row itself.


All 15 pages in this section


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Frequently asked questions

How does diluting wort actually work?
It balances gravity points. The total sugar stays the same while the volume increases, so the gravity reading falls in proportion. That means the arithmetic is straightforward, but it also means everything else dilutes too: bitterness, colour and mineral content all drop by the same percentage.
Should dilution water be boiled?
If it goes into cooled wort or into the fermenter, yes. Any water added after the boil is a contamination route, so boil and chill it first, or use water you know to be sterile. Water added before or during the boil needs no separate treatment because the boil handles it.

Researched from published brewing formulas, manufacturer specifications and verified owner reviews. This is general guidance, not professional advice.