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Estimate first/second rise times and water temp from dough type, target dough temp, and room temp via the Q10 rule.

📘 How to Use

  1. Select the dough type from the dropdown menu.
  2. Set your target dough temperature and current room temperature.
  3. Review the calculated rise times and recommended water temperature.

Bread Fermentation Timer

°C
°C

※ Dough reference values: Base fermentation time -, Base temperature -, Second-rise ratio -

First rise
-min

Second rise
-min
Total rise time
-min

Recommended water temperature

Suggested value derived from room and target dough temperatures.

- °C

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Fermentation Temperature Timer | Precise Bread Dough Proofing Calculator

This calculator helps bakers determine the optimal first and second rise (proofing) times based on ambient and target dough temperatures. It is an essential tool for maintaining consistent baking results regardless of seasonal temperature changes.

💡 About This Tool

  • Automated Time Adjustments: Calculates the first rise, second rise, and total fermentation times based on the selected dough type. Supported profiles include Shokupan, French, Pizza, and Bagel.
  • Water Temperature Recommendation: Computes the ideal water temperature to achieve your target dough temperature before mixing.
  • Visual Threshold Warnings: Automatically displays alerts if the required water temperature reaches extremes. It warns if the water is 40°C or higher (which may weaken the yeast) or 10°C or lower (which will significantly slow down fermentation).

🧐 Frequently Asked Questions

Q. How is the recommended water temperature calculated?

A. The tool uses a simplified friction factor formula to determine the necessary water temperature: (Target Dough Temperature × 3) - (Room Temperature × 2). This calculation assumes that the flour temperature is roughly equal to the room temperature, providing a reliable baseline for mixing.

Q. Why do the fermentation times change so drastically when I adjust the temperatures?

A. The calculator adjusts times based on the Q10 temperature coefficient rule. As the temperature deviates from the dough's specific baseline temperature, the yeast activity changes exponentially. This ensures the predicted proofing time remains accurate whether your kitchen is unusually warm or cold.

📚 Baking Knowledge: Shokupan and the Q10 Rule

If you are unfamiliar with the term "Shokupan" featured in the dough selection, it refers to traditional Japanese milk bread. Known for its incredibly soft, fluffy, and slightly sweet crumb, Shokupan requires precise temperature control during fermentation to achieve its signature texture. In this tool, the baseline profile for Shokupan is configured for a 60-minute initial rise at an ideal temperature of 30°C.

The core logic driving the time adjustments in this calculator is based on the biological Q10 rule. In baking science, this principle dictates how yeast fermentation rates scale with temperature shifts. By applying the formula baseTime × 2^((baseTemp - targetTemp) / 10), the tool mathematically predicts the necessary proofing duration. This prevents under-proofing in cold environments and over-proofing in warm environments, granting bakers highly predictable dough development.