Hi Jon, this is the information for yeast conversion I have. Cheers. Valerie The rule of thumb is dividing or multiplying by 3: . from fresh yeast to dry - divide amount by 3, eg. instead of 30 grams of fresh yeast use 10 grams of dry . from dry yeast to fresh - multiply by 3, meaning 7 grams or dry yeast becomes 21 grams of fresh. Another easy way to remember yeast conversion is: 10g of fresh yeast = 1 teaspoon of dry yeast