58–62°F Sourdough (14.40–16.70°C)

Recommendation

Cold kitchen territory — cellars, garages, unheated rooms. Ferment time is 2.5× longer than baseline 76°F. Excellent for flavor development when you have the patience. If your kitchen runs this cold naturally, either move dough to a warmer spot or extend bulk and proof times dramatically. Consider using 20-25% levain instead of 15-20% to compensate for slow activity.

Why 58–62°F changes your timing

Sourdough is a living culture, and its yeast and bacteria speed up as it warms. Across the useful baking window (roughly 50–95°F) the rate follows the classic Q₁₀ relationship — fermentation runs about two to three times faster for every ~15–18°F of warming. At 58–62°F the net effect is a 2.50× bulk and 2.40× proof multiplier versus the 76°F bakery baseline, so every stage runs slower. That single number is why a formula's printed times only hold at the temperature they were written for — move the dough 10 degrees and the clock is wrong.

Worked timing at 58–62°F

Representative country-loaf baselines multiplied by this range's bulk (2.50×) and proof (2.40×) factors. Treat these as a floor to start checking, not a finish line.

What to watch for at 58–62°F

Dough moves slowly here, so the common failure is pulling it too early. An under-proofed loaf bakes up dense with a tight, gummy crumb and often bursts at a random seam instead of the score. Trust rise and feel over the printed clock: give it the extra time, then judge by the poke test below.

How to adjust your formula at 58–62°F

Because the culture is sluggish at this temperature, raise your levain to about 20–25% of the flour (from a typical 15–20%) to offset the slow rise — or simply plan for the longer clock and leave the formula alone.

To land the dough in this range even when the room swings, use the desired-dough-temperature (DDT) method: dough temperature ≈ (flour temp + room temp + water temp + friction factor) ÷ 4. Solve for the water temperature you need — in a cool kitchen use warmer water; in a hot one, cool or even iced water — so the dough itself, not just the air, sits at your target.

Telling doneness by feel, not the clock

The times above are a guide; the dough is the real timer. Bulk is done when the mass has risen 50–75%, looks domed and bubbly, and jiggles like set custard when you shake the container — an aliquot jar (a small sample in a straight-sided container) makes the rise easy to read. The final proof is ready when a floured poke springs back slowly and only partway. These cues are identical at every temperature; only when they arrive changes — at 58–62°F, sooner or later by the 2.50× factor above.

58–62°F sourdough — FAQ

Timing calculator at this temperature

How each style behaves at this temperature

Click any style to see its full timing at 58–62°F:

• Country Loaf (Pain de Campagne)
• Ciabatta
• Baguette
• Focaccia
• Sourdough Brioche
• 100% Rye Pan Loaf
• 40% Rye Hearth Loaf
• 100% Whole Wheat Pan Loaf
• Spelt Hearth Loaf
• Pain de Campagne (Variant with Rye)
• Sourdough Bagel
• Sourdough Pretzel
• Neapolitan Pizza (Sourdough)
• NY Style Pizza (Sourdough)
• Focaccia Genovese
• Pain au Levain
• Miche (Poilâne-Style)
• Pan de Cristal
• Ciabatta Integrale
• Sourdough English Muffin
• Sourdough Naan
• Sourdough Tortilla
• Sourdough Challah
• Sourdough Panettone
• Hokkaido Milk Bread (Sourdough)