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Old 12-08-2012, 05:35 PM   #11
Montanaandy
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Quote:
Originally Posted by MattHollingsworth View Post
Decant while cold, pitch while cold. You get no benefit from warming the yeast before pitching, IMHO. There was a lot of talking about this some time back, about pitching cold. Maybe search for the thread. Anyway, point is, it's not necessary to warm the yeast. Yeast has temperature shock if you're going DOWN in temp. Pitching cold yeast into a warm solution won't bother them, in my experience, and I've been cold pitching for maybe the last 50 batches.
Hey Matt - great to see you back on the board.

I agree completely. Every microbrewery around these parts pitches cold (and over pitches but that is another thread in and of itself)

 
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Old 12-08-2012, 07:58 PM   #12
Denny
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Quote:
Originally Posted by matthollingsworth View Post
decant while cold, pitch while cold. You get no benefit from warming the yeast before pitching, imho. There was a lot of talking about this some time back, about pitching cold. Maybe search for the thread. Anyway, point is, it's not necessary to warm the yeast. Yeast has temperature shock if you're going down in temp. Pitching cold yeast into a warm solution won't bother them, in my experience, and i've been cold pitching for maybe the last 50 batches.
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Old 12-08-2012, 07:59 PM   #13
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Quote:
Originally Posted by Brew-boy View Post
I decant while cold but let it warm up to room temp after that. I do not want to take cold yeast at 42f and pitch into 67f wort.
Not sure if it matters or not but I don't want to shock the yeast by this big temp swing.
It's actually better to pitch while it's still cold. If it warms up the yeast starts consuming its nutrient reserves before it gets into the beer.
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Old 12-09-2012, 08:45 AM   #14

Quote:
Originally Posted by Montanaandy View Post
Hey Matt - great to see you back on the board.

I agree completely. Every microbrewery around these parts pitches cold (and over pitches but that is another thread in and of itself)
Thanks! We had a baby in February 2011, so I wasn't on here much after that for a bit. Managed to keep brewing regularly, thanks to a patient wife, but wasn't finding forum time.

Quote:
Originally Posted by Denny View Post
It's actually better to pitch while it's still cold. If it warms up the yeast starts consuming its nutrient reserves before it gets into the beer.
That part I didn't know, but makes sense.
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Old 12-09-2012, 08:52 AM   #15
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When I saw this thread I thought of a Denny thread where he supported pitching cold. Glad he posted here. The guy knows yeast. If I'd tried to say that; no credibility. But cold pitching advice from Denny = Golden

 
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Old 12-09-2012, 10:07 AM   #16
icubrew
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Did i read something wrong or did you say 1.5 CUPS in 1000ml?

 
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Old 12-10-2012, 04:29 AM   #17
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Nope, you read right. I've been told to do 1/2 cup DME per 2 cups water. I then used Mr. Malty and it said, for an OG of 1.064, use 1.119 liters water, which is 5 cups roughly. It doesn't say anything about DME, but based on the above ratio, that would be 1.5 cups DME.
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Old 12-10-2012, 01:25 PM   #18
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Using a swag of 1lb=2.75cups of DME that would be about 9oz of DME in 1.5 cups. 9oz DME to 1.119liters (h2o volume) + 355ml (dme volume)=1.474liters results in OG of 1.065 for your starter. Given that OG of a starter is recommended to be about 1.040, that's fairly high. Maybe the yeast were a little stressed?
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Old 12-10-2012, 04:43 PM   #19
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I was also thinking osmotic stress gave your yeasts too much stress. I usually do starters with an OG of about 1.030 or 150g DME in 1.5L.

 
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Old 12-11-2012, 02:25 AM   #20
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raoliii, I was meaning my 5 gallon wort had an estimated OG of 1.064, not the starter.
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