Step 1

PROOFING YEAST TO TEST FOR ACTIVINESS

Step 2

In a 1-cup glass measure, add 1 teaspoon sugar to 1/4 cup warm water (100 to 110 degrees F.)

Step 3

Sprinkle in 1 packet of dry yeast (2 1/4 teaspoons). Stir well to dissolve, then let stand for 10 minutes without disturbing.

Step 4

If the yeast foams to the 1/2 cup mark on measuring glass within the 10 minutes, it is fresh and can be used in your recipe.

Step 5

If not, toss it out and buy some fresh yeast!