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How to Calculate Yeast Needed for Fermentation

To calculate the amount of yeast needed for fermentation, you'll need to know the following:

- The gravity of your original wort

- The gravity of your final beer

- The attenuation of your yeast strain

Here are steps with formulas:

1. First find out the volume of your batch in terms of barrels which can be done through dividing (gallons/31).

2. The you plug the result, along with other needed details in:

`Yeast per Brew(grams) = Original Gravity X Attenuation of yeast / 1600* 0.833/volume`

Growing Mushrooms