Sourdough TimingsHow temperature changes fermentation time, and how to work with it.KitchenApproximate bulk fermentation times at different dough temperatures.Dough tempBulk fermentNote18°C8–10 hoursSlow, more flavour21°C5–6 hoursTypical room24°C4–5 hoursWarm kitchen27°C3–4 hoursFast; watch closely4°C (fridge)8–16 hoursRetarding; flavour developmentJudge by the dough — roughly 50% risen, domed, jiggly — not by theclock. A recipe's time assumes a temperature it rarely states.Sourdough Timingslearnposters.com
Sourdough Timings — printable food wall chart from LearnPosters. Free vector PDF, US Letter and A4.

What’s on the Sourdough Timings poster

A 5-row table: Dough temp · Bulk ferment · Note.

Approximate bulk fermentation times at different dough temperatures.

Judge by the dough — roughly 50% risen, domed, jiggly — not by the clock. A recipe's time assumes a temperature it rarely states.

Questions about the Sourdough Timings poster

What’s on the Sourdough Timings poster?
A 5-row table: Dough temp · Bulk ferment · Note. Approximate bulk fermentation times at different dough temperatures. 18°C — 8–10 hours — Slow, more flavour; 21°C — 5–6 hours — Typical room; 24°C — 4–5 hours — Warm kitchen; 27°C — 3–4 hours — Fast; watch closely; 4°C (fridge) — 8–16 hours — Retarding; flavour development. Judge by the dough — roughly 50% risen, domed, jiggly — not by the clock. A recipe's time assumes a temperature it rarely states.
Who is the Sourdough Timings poster for?
Sourdough Timings belongs to the Kitchen section rather than to a school year, because food is not something one grade owns. Anyone learning measures can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Sourdough Timings poster?
Time is not the variable. Temperature is, and dough does not read clocks. A wall chart earns its place by being glanceable from where the work is happening, so Sourdough Timings belongs on the wall where that food work actually happens, within glancing distance, rather than filed away.
What other posters go with Sourdough Timings?
Baking at Altitude, Brining and Coffee Ratios sit alongside Sourdough Timings in the Kitchen section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Baking at AltitudeBriningCoffee Ratios
Is the Sourdough Timings poster free to download and print?
Yes. Sourdough Timings downloads as a free PDF with no account, no email and no watermark, like everything else in the Kitchen section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Sourdough Timings poster print at?
Sourdough Timings is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Sourdough Timings loses nothing.Printing guide

Related posters

Charts that sit alongside Sourdough Timings on the same wall.

Browse every Kitchen poster, or start from the full catalogue.