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Bake Better Bread: Temperature

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Is water cold, warm or hot if it is tepid?

If the water is tepid, what temperature is it? The dictionary definition of tepid is slightly warm or lukewarm. As an adjective, tepid means lacks enthusiasm, half-heartedindifferentcool. I think you’d agree that this is a woolly term at best and one that should be consigned to the bin. YET, there are so many bread recipes that call for tepid water. What temperature is tepid?

I’ve tested this at many of my bread making classes. I fill a jug with tap water and ask participants to describe the temperature. Is the water cold, tepid, warm, hot? Each person’s reaction is different. If each of us follow the recipe that calls for tepid water, the results will be different as we’ll use different temperature water.

Why is temperature important?

The final temperature of a dough after mixing is one of the indications that the dough has been sufficiently mixed to a point where the yeasts are developed. Too low a temperature and the dough won’t rise well, too high and the dough will over-ferment. The ideal temperature is between 24°C and 26°C.

Room temperature, flour temperature and water temperature are important

We have three factors to consider:

Measuring the air temperature with a digital thermometer

Measuring the air temperature with a digital thermometer

Room Temperature

You can well imagine there would differences if you make bread on a Polynesian island (as one of my former breadmaking classmates has to do) where it is 38°C or at the British Antarctic Survey at the South Pole where it approaches freezing.

Measuring the Flour Temperature with a digital thermometer

Measuring the Flour Temperature with a digital thermometer

Flour Temperature

Where has the flour been stored? Will it be the same temperature as the room? You’ll be surprised – even if it is in the same room, it is often cooler than room temperature.

Measuring the Water Temperature with a thermapen

Measuring the Water Temperature with a digital thermometer

Water Temperature

Depending on the time of year, the water temperature out of the tap will vary. You’ll know this if you let it run to get a really cold glass of water to drink. But water temperature is realistically the only factor you can easily change.

Using the Base Temperature formula

There’s a really simple formula that can help you determine the correct water temperature – Base Temperature. You will need a digital thermometer (these can be obtained very cheaply).

Adding the temperature of the air, the water and the flour should equal 60.

  • Check the air temperature it’s 18°C.
  • The flour temperature is 16°C.
  • Add these two together = 34°C.
  • Subtract that from 60 (the base temperature) to give 26°C. This is the water temperature to use.

If the day were far warmer, say 24°C and my flour temperature is 20°C, my water temperature would be 16°C. For ease, round up the temperature if it is .5 or above, round down if it is .4 or below.

You might ask what you do when the air temperature is really hot. Bakers in very hot climates have to resort to storing the flour in a refrigerated location!

NB Some professional bakers use a different Base Temperature, but 60 is widely used.

Using the correct water temperature will make better bread

Using the correct water temperature will help you make better bread

Checking your dough temperature

Use a tried and tested bread recipe, or one of my bread recipes and mix by hand or in a machine.

Once you have kneaded the dough by hand for at least 10 minutes, check the temperature. Keep kneading if it has not reached 24°C.

If you are using a stand mixer, planetary or spiral mixer, you will mix the dough at a low speed around 5 minutes, then on second speed for a further 5 minutes. This will vary on the power of the motor in your stand mixer. Check the temperature at this point. If necessary mix for a minute more and check again.

How do I know if my bread is ready?

There are of course other indications to tell you whether your dough is sufficiently mixed – the window pane test and whether the dough has come away from the sides of the bowl. For the window pane test lift up your dough and stretch it. It should resist breaking immediately. If your dough is sufficiently mixed in a mixer bowl, it will come clean of the sides of the bowl.

Find out more

This topic is covered in my half-day and full-day breadbaking courses.

How to calculate water temperature for bread making

How to calculate water temperature for bread making

Bake Better Bread: Baker’s Percentages

Bake Better Bread: Pre ferment – Pâte fermentée

Bake better bread: Fresh Yeast

Bake Better Bread: Using heat and steam

Baker Better Bread: Baking in the Rofco

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2 Comments

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