How to Proof Yeast

If you are a seasoned baker, you know that yeast is a "living" ingredient. As it digests sugar, it releasing alcohol and carbon dioxide that causes your bread to rise. If your yeast is dead, your bread will not rise. "Proofing" the yeast is how you determine whether your yeast is alive or dead.

To proof yeast, combine 1/2 cup of hot water (about 100 degrees), and 1 Tablespoon of sugar. Stir your sugar and water until the sugar is completely disolved. Add a package of yeast. After five or ten mintues, the yeast should begin to form a creamy foam on the surface of the water. If the yeast is dead, there will be no foam in the bowl and you should start over with a new packet of yeast.