How to calculate the volume of fermenter and amount of yeast
Condition: One conical fermenter, total height 9.4m, diameter 4.2m, conical bottom height 3.6m.
Question 1: How many liters of beer can be filled in this fermenter?
Question 2: How many kilograms of yeast can be produced after fermentation?
Question 3: How many kilograms of dry yeast can be produced after fermentation?
Answer to question 1:
Side wall height=9.4m-3.6m=5.8m
Volume of side wall: Vz=πr2h
Volume of conical bottom: Vk=1/3πr2h
Answer to question 2:
It can produce 1.5-2.5kg pulpy yeast per hectolitre beer. We assumes 2kg here.
Amount of yeast=969.3x2=1938.6kg
Answer to question 3:
For pulpy yeast (including 80% water), 40% of them is usually used for propagation and 60% is used for producing dry yeast(including 7% water).
Amount of dry yeast=1938.6kgx(1-85%)x60%/(1-7%)=187.6kg
Edited by Vicky
Sales manager in Tiantai Beer Equipment Company
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