Tempo iogurte (h)

Base 6-8h a 43°C.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

tempo
16,3 h

About this calculator

The yogurt fermentation time calculator estimates the duration needed to transform milk into yogurt, considering the fermentation temperature. The baseline recommendation is 6 to 8 hours at 43°C, but adjustments can be made based on temperature variations or desired consistency. The calculation is based on the relationship between temperature and lactic acid bacteria activity, which either speeds up or slows down the process.

To use the calculator, input the temperature of your fridge or fermenter. If the temperature is below 43°C, the time increases proportionally; above that, the process accelerates. For example, at 40°C, the suggested time might be 9-10 hours. Maintaining a stable temperature is crucial to avoid under- or over-fermentation.

This tool is ideal for homemade yogurt production aiming for consistent results. It helps avoid common mistakes like frequent fermenter openings or stopping before the optimal time. The calculator is also useful for adjusting alternative methods, such as cold yogurt (7-10 days in the fridge).

Cautions: if the temperature is too low, the yogurt may not set properly. At high temperatures, there's a risk of burning. Always check the texture and taste before consuming. For best results, use whole milk and pure starter cultures.

Frequently asked questions

What is the minimum time required to ferment yogurt?

The minimum recommended time is 4 to 6 hours, but the yogurt might not reach ideal consistency if fermentation is too short.

Can I let yogurt ferment for more than 12 hours?

Yes, but the taste may become overly acidic. Avoid exceeding 12 hours to prevent over-fermentation.

How does temperature affect fermentation time?

Temperatures below 43°C prolong the process, while higher temperatures accelerate it. Variations of ±3°C significantly impact the time.

Does the calculator work for yogurt made in the fridge?

For cold fermentation methods (7-10 days), the calculation isn't directly applicable. Manual adjustments are recommended.

Do I need to adjust time if using skim milk?

Skim milk may require 1-2 additional hours of fermentation due to lower protein content.

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