Temperature × recipe
Sourdough Tortilla at 83–87°F
Adjusted timing: 0.3h bulk + 0.2h proof (multiplier 0.56×).
- Baseline bulk (76°F)
- 0.5h
- Adjusted bulk
- 0.3h
- Baseline proof
- 0.3h
- Adjusted proof
- 0.2h
- Multiplier
- 0.56×
- Activity
- hyperactive
- Target hydration
- 60%
- Bake temp
- 400°F
Why the timing shifts
Hot kitchen — summer without AC, near-window light. Ferment nearly 2× faster than baseline. Not ideal — fermentation outpaces gluten development, leading to over-acidic flavor and collapsed structure. If unavoidable, use very low levain (10-12%), minimal bulk (2h max), and get dough into cold retard ASAP. Consider reducing bulk temperature by moving dough to cooler location (basement, refrigerator brief intervals).
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 85°F
- 0.56×
- Adjusted bulk ferment
- 0.3 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.