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General Category => Yeast and Fermentation => Topic started by: oscarvan on January 17, 2011, 10:54:52 PM

Title: Harvesting Yeast
Post by: oscarvan on January 17, 2011, 10:54:52 PM
I have the perfect opportunity to harvest and reuse, the same day. There's a 5g batch that will be ready to go to secondary on Wed or Thu, and I plan on doing a 10g batch of the same APA one of those days. The way I look at it, the sediment on the bottom of the primary fermenter (Wye 1056) is just a big ass starter and I can divvy it in two and pitch it in the two primary fermenters......

Am I thinking wrong?
Title: Re: Harvesting Yeast
Post by: maxieboy on January 17, 2011, 11:10:33 PM
IMO, no.
Title: Re: Harvesting Yeast
Post by: oscarvan on January 17, 2011, 11:11:17 PM
Hah! Just found this.....

http://thebrewingnetwork.com/shows/492
Title: Re: Harvesting Yeast
Post by: oscarvan on January 17, 2011, 11:11:52 PM
IMO, no.

No, I'm not thinking wrong, or no you can't do that?
Title: Re: Harvesting Yeast
Post by: maxieboy on January 17, 2011, 11:15:01 PM
No, you're not thinking wrong. Yet... ;D
Title: Re: Harvesting Yeast
Post by: oscarvan on January 17, 2011, 11:22:20 PM
No, you're not thinking wrong. Yet... ;D

Stay tuned, when I brain fart I do it right.......... ;D
Title: Re: Harvesting Yeast
Post by: Hokerer on January 18, 2011, 01:41:44 AM
Nope, nothing wrong with what you're thinking.
Title: Re: Harvesting Yeast
Post by: tom on January 18, 2011, 02:20:22 AM
mrmalty.com has a good yeast calculator.
You'll probably only need 1/3 for each 5 gallons.
Title: Re: Harvesting Yeast
Post by: bluesman on January 18, 2011, 02:30:42 AM
If you don't plan on using any of the yeast cake within the next few weeks then I would recommend using some of the yeast to grow up an appropriate starter instead. This will ensure that the yeast is healthy, alive and ready to go to battle.
Title: Re: Harvesting Yeast
Post by: oscarvan on January 18, 2011, 12:09:47 PM
mrmalty.com has a good yeast calculator.
You'll probably only need 1/3 for each 5 gallons.

Yup, the boys were just explaining that on the BN episode quoted above......VERY helpful.
Title: Re: Harvesting Yeast
Post by: oscarvan on January 21, 2011, 02:01:23 AM
OK, so I listened to the BN-cast, read all there was to read on Mr Malty and read all the pertinent passages in the texts I consider relevant..... Today I got the slurry out of the primary that I racked, thinned it, swirled it, and then (this is the hard part) decided whether it was thick or thin, and milliletered into the two fermenters I filled with todays 10G brew (same ale).....

It's bubbling two hours later......scary.... :o
Title: Re: Harvesting Yeast
Post by: tygo on January 21, 2011, 03:48:03 AM
Guess you pitched enough then  ;)
Title: Re: Harvesting Yeast
Post by: oscarvan on January 21, 2011, 01:30:04 PM
Guess you pitched enough then  ;)

That and the fact that it was alive and kicking coming straight out of a primary...... REALLY going to town now.  8)