Re-hydrate the yeast or sprinkle it on? - Home Brew Forums
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Old 09-04-2011, 12:09 AM   #1
WortCarboy
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Sep 2011
Ottawa, ON
Posts: 13


Hello everyone,

First post here, making my first batch: A Canadian Red Ale extract /w dry yeast package.

I am trying to make the best beer possible and am willing to do the extra steps to do so. I have been reading numerous instructions on the best ways to brew and one thing that I am not sure of is how to pitch the yeast.

There seems to be two methods:
1) Re-hydrate the yeast for 15 minutes until fermenting. Poor into fermentor and stir.
2) Sprinkle the yeast onto the top of the wort in the fermentor and do not disturb.

What is the generally accepted best way of pitching the yeast?



 
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Old 09-04-2011, 12:22 AM   #2
macsyrinx
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Mar 2011
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I never rehydrate, but that's just my experience. I'm not sure if there is a generally accepted method, but here's a good thread regarding your question:

http://www.homebrewtalk.com/f13/rehy...cessary-62514/


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Old 09-04-2011, 12:25 AM   #3
WortCarboy
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Sep 2011
Ottawa, ON
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Awesome, thanks for the link mac,

Gonna go with the sprinkle method for this batch.

 
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Old 09-04-2011, 12:43 AM   #4
drkaeppel
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Dec 2010
Lewisville, TX
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I typically just follow directions on the pack. If I remember correctly, I think SafAle says to just sprinkle it on the wort. Danstar recommends rehydrating. Pretty sure the difference would be negligible either way.

Good luck!
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Old 09-04-2011, 12:46 AM   #5
zyx345
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Jul 2010
Northern NJ
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I normally sprinkle on top of cooled wort and do not stir. I've read that its advisable to try and avoild letting it "clump up" so I tend to sprinkle the yeast as evenly as I can on the top of the wort.

 
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Old 09-04-2011, 12:51 AM   #6
JoeyChopps
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Apr 2011
warner robins, ga
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I use to sprink it on in a bucket then pour into a carboy for extra airation with great results

 
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Old 09-04-2011, 01:06 AM   #7
flipfloptan
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Sep 2010
upstate of SC
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there was a podcast epidsode last month on basic brewing about this topic. it was an experiment on two batches one sprinkle, one rehydrated.

If you have a. d. d. like me I will summarize. The science show that yeast has more viability if you rehydrate. The tasting showed that they couldn't agree on any one method tasting better. They did agree rehydrating may help with bigger beers.

Personally, I just sprinkle. Hasn't failed me yet and I am not introducing another step that could lead to infection.

 
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Old 09-04-2011, 01:18 AM   #8
Jcmccoy
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Jul 2010
Homewood, Illinois
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Rehydrate it helps the yeast with the shock of going on to the wort. More yeast cells will live if you rehydrate.
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Old 09-04-2011, 01:21 AM   #9
LKABrewer
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Mar 2011
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If you are cold pitching into 62* wort and rehydrating at 85*, how does this not shock the yeast?
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Old 09-04-2011, 02:12 AM   #10
BradleyBrew
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Nov 2010
Parris Island, USA
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LKABrewer I don't think they mean thermal shock... they are referring to the dry yeast re-hydrating and water and other wort materials moving across the yeasts cell walls. When re-hydrated in warm water the cells have a better chance of not being destroyed during this process.

I've re-hydrated and just sprinkled on top of the wort. I believe in MY experience that fermentation takes place a little bit faster when the yeast are re-hydrated (and when you make a starter). I would recommend re-hydrating for big beers as suggested as you need a much higher overall cell count to ferment correctly and completely.



 
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