Temperature × recipe

Sourdough Tortilla at 7882°F

Adjusted timing: 0.4h bulk + 0.2h proof (multiplier 0.78×).

Baseline bulk (76°F)
0.5h
Adjusted bulk
0.4h
Baseline proof
0.3h
Adjusted proof
0.2h
Multiplier
0.78×
Activity
very-active
Target hydration
60%
Bake temp
400°F

Why the timing shifts

Warm kitchen or proofing box — ideal for accelerating fermentation. Ferment 25% faster than baseline. Good for schedule compression. Watch carefully — dough over-proofs quickly. Ideal for hot-weather baking when you want to get dough into cold retard before too much fermentation happens. Consider reducing levain to 12-15% to slow things back down.

Technique for Sourdough Tortilla

Mix all ingredients (fat cut in like pie dough). 30 min rest only. Divide into 60g balls, roll thin (about 7 inches). Cook on dry cast-iron skillet at medium-high heat (400°F) for 30-45 sec per side until lightly browned with some bubbles.

Calculator pre-set to these values

Multiplier at 80°F
0.78×
Adjusted bulk ferment
0.4 h
Adjusted final proof
0.2 h
How the math works

Multipliers are piecewise-linear interpolations between reference points measured by Myhrvold et al. in Modernist Bread vol 3. 76°F is the baseline (1.0×); every 10°F drop roughly doubles fermentation time, and every 10°F rise roughly halves it.

Sources: Myhrvold, Modernist Bread vol 3 (temperature multipliers); Mexican traditional formula adapted for sourdough.