Priming sugar calculator
How much sugar for bottling? Enter your beer volume, the highest temperature it reached after fermentation and the carbonation you want.
Priming sugar
Use the highest temperature the beer reached after fermentation ended, not the bottling temperature: that sets how much CO₂ is already dissolved.
How much carbonation?
British ales: 1.5–2.0 volumes. American ales and lagers: 2.2–2.7. Belgian ales and wheat beers: 2.8–3.5 (use bottles rated for it). The beer already holds some CO₂ from fermentation, which depends on temperature; the calculator subtracts it, then adds about 4 g of table sugar per litre per volume of CO₂ (4.4 g for dextrose).
Questions
Table sugar or dextrose?
Both work. Dextrose needs about 10 % more by weight for the same carbonation and some brewers find it cleaner; the difference in taste is minimal.
Why the highest temperature after fermentation?
CO₂ escapes as the beer warms. The highest temperature it reached tells how much is left in solution.
How long until it's carbonated?
About two weeks at 18–22 °C. Cold storage slows it down a lot.
Track every batch, not just one number
Mashwerk computes this for every recipe and brew, from your own equipment and readings. Free plan, no credit card.
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