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Old 06-02-2010, 02:48 PM   #11
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I have fun harvesting yeast from bottles.

One thing I have found that helps, is to use the slurry from multiple bottles of the same beer. Last summer I did a really successful Hoegaarden harvest from 12 bottles. What I would do is after pouring the beer into a glass, I would spray the lip of the bottle with starsan and then re-cap with a sanitized cap. Then store in the fridge until I had enough bottles. Then on harvest day I would spray the caps again with starsan, open them, flame the lip of the bottles, and re-spray with sanitizer, then pour the dregs into my starter.

I ended up with 2 good sized mason jars with yeast. It's made some really tasty wits since then.

This is a pretty good list of beers with harvestable yeasts, though it is waay incomplete and hasn't been updated. It's still a good source. http://www.nada.kth.se/~alun/Beer/Bottle-Yeasts//


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Old 06-02-2010, 05:32 PM   #12
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Quote:
Originally Posted by Revvy View Post
I have fun harvesting yeast from bottles.

One thing I have found that helps, is to use the slurry from multiple bottles of the same beer. Last summer I did a really successful Hoegaarden harvest from 12 bottles. What I would do is after pouring the beer into a glass, I would spray the lip of the bottle with starsan and then re-cap with a sanitized cap. Then store in the fridge until I had enough bottles. Then on harvest day I would spray the caps again with starsan, open them, flame the lip of the bottles, and re-spray with sanitizer, then pour the dregs into my starter.

I ended up with 2 good sized mason jars with yeast. It's made some really tasty wits since then.

This is a pretty good list of beers with harvestable yeasts, though it is waay incomplete and hasn't been updated. It's still a good source. http://www.nada.kth.se/~alun/Beer/Bottle-Yeasts//
I just pour some sterile wort (about half a cup) - can be made up from DME - into the bottle in question and then swirl it every now and then. Depending on the viability of the yeast, activity will be apparent from 3-7 days. Smell the culture to see if it corresponds with the beer harvested from and then step up the starter.


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