Blooming yeast is the process of rehydrating dry yeast in warm water before adding it to dough. This allows the yeast to become active and begin to eat the sugars in the water, which produces carbon dioxide gas. The gas causes the dough to rise, resulting in a light and fluffy texture.
Blooming yeast is important because it helps to ensure that the yeast is active and will be able to leaven the dough. It also helps to prevent the dough from becoming dense and heavy. Blooming yeast is a simple process that only takes a few minutes, but it can make a big difference in the quality of your baked goods.