Is it necessary to rehydrate or dilute baker’s yeast to ensure proper fermentation?
It’s thanks to baker’s yeast that the dough rises during fermentation and in the oven. So we skip the baking powder when making bread, brioche, doughnuts, pizza, focaccia…
Depending on the store and your country, you’ll find:
- Fresh yeast sold in small cubes in the refrigerated section
- Instant dry yeast in the form of small sticks
- Active dry yeast, such as Saf-Levure, in the form of larger granules
There are two ways to incorporate fresh yeast and instant dry yeast into the dough:
1: Dry mixing method: The yeast can be mixed directly with dry ingredients (flour, salt). Bakers use this method.
2: Rehydration method: The yeast can be dissolved in a liquid (water/milk) before being mixed with the dry ingredients.
For active dry yeast, rehydration is required. After resting in a little lukewarm water, active dry yeast activates very quickly. This type of yeast is particularly well-suited for humid climates.
If you’re using a bread machine, it’s best to dissolve the baker’s yeast in a little lukewarm water (or milk) before adding it to the flour. This will help the yeast disperse more evenly throughout the dough.
Is it necessary to activate baker’s yeast before adding it to the flour?
Activating the yeast means stimulating its fermentation process by providing it with an easily digestible sugar, such as sucrose (white sugar).
Many recipes recommend activating the baker’s yeast in a little lukewarm water (5 cl at 35–40 °C) with a pinch of sugar. Although activation isn’t mandatory, it helps the fermentation process start more quickly.
Now your yeast is ready to ferment your dough.
One last tip: also pay attention to the dough’s temperature.
