Question: how many grams is .25 ounces of yeast?
Answer: 7 grams instant yeast = 1/4 ounce instant yeast = 2 1/4 teaspoons instant yeast = 21 grams fresh yeast or 1 1/4 blocks (0.6-ounce size) or about 1/2 block (2-ounce size) fresh yeast. 1 teaspoon instant yeast (3 grams) = 1/2 block (0.6 ounce size) fresh yeast.