Temperature

Temperature & timing

Your kitchen is not 68 °F. A 10 °F swing roughly doubles or halves fermentation time. Enter the recipe base days and your actual temperature for the adjusted timing.

Temperature & timing

Most published recipes assume a 68 °F kitchen. Enter the base days for your recipe and the temperature you actually have — we return the adjusted fermentation time.

Recipe base days (at 68 °F)

days

Kitchen temperature

°F

7days

1× the base time at 68 °F (20 °C) · Baseline 68 °F

Standard fermentation baseline (68°F). Most published timings assume this temperature.

Temperature bands at a glance

Range	Multiplier vs 68 °F	Character
Under 50 °F	3.5×+	Cold retard / refrigeration — effectively paused.
55–60 °F	2.2×	Cold kitchen. Clean flavour development over many weeks.
61–65 °F	1.5×	Cool room. Classic sauerkraut + kimchi primary.
66–70 °F	1.00×	Standard fermentation baseline — most recipes.
71–76 °F	0.75×	Warm room. Fast primary; check daily after day 3.
77–82 °F	0.55×	Hot kitchen. Fast but flavour turns vinegary; submerge carefully.
Above 82 °F	0.42×	Mould / kahm yeast risk rises. Relocate or finish and refrigerate.

Multipliers anchored to charts in the Noma Guide to Fermentation (Redzepi & Zilber, 2018, pp. 53–57) and corroborated by Sandor Katz, The Art of Fermentation, chapter 3.