The Dry Yeast Tab
Created by Matthew Kunzman ©2007
This tab calculates how much dry yeast you need to pitch for a given beer.
There have been recent advancements over the last few decades in dry yeast have really improved
the quality of dry yeast strains, though the selection is still fairly limited. If there is a dry yeast strain that fits the type of beer you're brewing, it can make very good beer unlike the dry yeast of yesteryear.
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# Yeast Cells Needed (in Billions): This is the number of yeast cells needed to properly ferment your wort. This is without a starter. Practically speaking, most homebrewers rarely use this number, because it is difficult to count the cells without a microscope. |
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# of grams of dry yeast: This is the amount of dry yeast needed, in grams, to get a proper fermentation without a starter. It is based on the assumption that there are 20 billion viable yeast cells per gram of dried yeast. While there are 20 billion cells, you'll find that many manufacturers will state other numbers on their products. The number on the products is the guaranteed minimum viable cells per gram. The reality is somewhere between 20 billion and that number, depending on the yeast strain and how the yeast was handled. Use the production date to calculate the viability of the yeast, which should get you fairly close to the correct number. If you don't have the ability to weigh by grams, don't worry. Use the number of packs below and estimate the amount. That will be OK. |
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# of 5 gram dry yeast packs: Dry yeast packs commonly come in two sizes. This is the amount of 5 gram dry yeast packs that your would need to pitch. Based on your input, the calculator tells you the number of packs needed for your beer. In all instances, properly rehydrate your dry yeast before pitching. There is no need to make a starter, with this amount of yeast. |
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# of 11.5 gram dry yeast packs: Dry yeast packs also come in the larger size of 11.5 grams. This is the amount of 11.5 gram dry yeast packs that your would need to pitch. Based on your input, the calculator tells you the number of packs needed for your beer. In all instances, properly rehydrate your dry yeast before pitching. There is no need to make a starter, with this amount of yeast. |