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Old 07-18-2014, 01:21 PM   #1
Ambleside
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Default Yeast washing with lots of hops

I've read the sticky about washing yeast, makes good sense to me. My only question is, when I transfer from kettle to fermenter (Carboy), I dont filter, so I get a lot of hop crud at the bottom which would be all mixed in with the yeast cake I'm washing. ( I also don't use muslin bags for boiling hops).

Will this pose an issue for harvesting the yeast? If it does, I'll start with a fresh vial and filter my hops out so they don't get into the fermenter. But ideally I'd like to harvest what I've got now. It's a nice one by The Yeast Bay.

Cheers!!

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Old 07-18-2014, 02:05 PM   #2
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Try the technique I use for harvesting. I use a mesh bag to filter hop debris when I pour to the carboy, but it should still work for you to get cleaner yeast.

Leave some beer in the carboy to cover the yeast cake when the carboy sits flat.
Swirl the contents of the carboy to make a beer and yeast/trub solution.
Lay the carboy on its side, with blocking to prevent rolling, put a block under the bottom of the carboy to move the solution to the shoulder of the carboy. The blocking can be rolled towels. Have the mouth of the carboy extend beyond the tables edge.
Gently pour out one quart of the solution when you see a clear line of beer form on the surface. Lift the bottom of the carboy for the pour. Leaving the shoulder of the carboy on the table will keep the yeast from remixing with the trub.
This should give you about 300 ml to 400 ml of yeast, without a lot of hop debris. Half of the quart jar will be beer to store the yeast under.

Don't forget to sanitize the mouth and neck of the carboy.

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Old 07-18-2014, 02:08 PM   #3
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For lightly hopped beers (2-3oz or less), I don't even worry about it. For highly hopped beers, I use a hop spider during the boil. And if I'm harvesting yeast, I make sure to dry hop in secondary. If not harvesting, I just toss them in the primary.

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Old 07-18-2014, 06:27 PM   #4
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Flars,
Cheers, thank you! That's sounds like a solid method right there.

How long from the beginning of fermentation should I wait to harvest? Is there a certain gravity I should wait to hit, or a standard amount of days for it to settle to the bottom?

Little confused on that, since I've read not to harvest if it's been in a high alcohol content beer, but the yeast is fairly alcohol tolerant.

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Old 07-18-2014, 06:43 PM   #5
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Quote:
Originally Posted by Ambleside View Post
Flars,
Cheers, thank you! That's sounds like a solid method right there.

How long from the beginning of fermentation should I wait to harvest? Is there a certain gravity I should wait to hit, or a standard amount of days for it to settle to the bottom?

Little confused on that, since I've read not to harvest if it's been in a high alcohol content beer, but the yeast is fairly alcohol tolerant.
I harvest the yeast from the carboy after I have racked the beer to the bottling bucket and have the beer bottled. Yeast harvest from the carboy is either the same day or the next day.

Some say the yeast will be to stressed for reuse if it is harvested from a 1.060 OG+ beer.
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Old 07-19-2014, 01:38 AM   #6
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I try to plan my brews and harvest yeast from lower hopped beers.

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