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Question: Why the working volume of the fermenter is always less than its total volume ? (Posted by: brar on 2010-01-01 11:17:30) Give in brief detail |
Answers:
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Posted by: MEE on 2010-01-01, 11:28:25 If its an aerated fermenter (which it usually is for alcohol and beverages) then aeration would cause an increase in volume after fermentation has started. Also, if it is a fed batch fermentation, extra nutrients and antifoam may be added once the production rate hits a specific value mid-fermentation. Extra volume may be needed during batch fermentations if gas produced from the reaction is not released. |
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Posted by: rowlfe on 2010-01-01, 11:38:17 Like when cooking rice, the mash gains volume as the fermentation process proceeds, or so common sense should have told you. The volume of the fermenter, is the working volume, not the full capacity of the container. Think about it for a moment.. Would you fill to the brim? .Why? Why not? |
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Posted by: bigralso on 2010-01-01, 12:39:53 At the start of the fermentation process , a lot of foam is produced, therefore you need room in the fermenter to hold it or you will have one big mess to clean up. |
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