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-   -   How Much Yeast? (http://www.homebrewtalk.com/f30/how-much-yeast-275957/)

oldude309 10-22-2011 01:54 AM

How Much Yeast?
So if you want to brew a 5 gal. batch do you use a packet per gallon or what? haven't seen to many 5 gal reciepes that show more than type of yeast. Jim

paraordnance 10-22-2011 05:53 AM

I seen some folks using 2x5 gr yeast packs for 5 gal batch but I'm sure you can get away with one

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AZ_IPA 10-22-2011 06:01 AM

One 11g pack of dry yeast works for five gallons of mead.

fatbloke 10-22-2011 07:24 AM

the Lalvin/lallemande sized home brew packs (5 grammes I believe) are designed for batches up to 5 gallons, so it's normal to use one pack.

Of course, it's all about the amount of cells needed and it's feasible to use one pack for larger batches or higher gravity batches if you make a big starter to inoculate the must with.

In the same way if you make a large starter, then pitch half of it and freeze or at least refrigerate the rest....

At the same time, you may also see recipes out there, that suggest using 2 packs, but I notice those are often ones with quite high level gravity readings for the must, so I'd guess it's about making sure that there's enough of a cell colony of yeast to ensure the fermentation runs Ok from the start (those type of recipes often suggest daily or twice daily aeration, staggered nutrient additions, controlled fermentation temps etc etc).

oldude309 10-22-2011 12:46 PM

Thanks for the replies folks. Jim

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