Author Topic: Pitching temp. vs. cool down time  (Read 845 times)

Offline flbrewer

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Pitching temp. vs. cool down time
« on: February 09, 2014, 12:25:13 PM »
I planned poorly for a one gallon batch this morning (no ice). Needless to say, the cooling down the wort portion took about 2 hours. Is it better to pitch ~80 after an hour of cooling or wait two hours and pitch at ~70?

I'm assuming the rapid cool down is to reduce the chance of infection?

Online Jimmy K

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Re: Pitching temp. vs. cool down time
« Reply #1 on: February 09, 2014, 12:34:48 PM »
Better to wait 2, 3, or 12 and pitch at 70.

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Offline morticaixavier

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Re: Pitching temp. vs. cool down time
« Reply #2 on: February 09, 2014, 12:43:17 PM »
Better to wait 2, 3, or 12 and pitch at 70.

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+10

I have not pitched yeast on the same day as brewing in a couple years now. there have been no issues related to that. those first 36 hours after pitching are the critical time. that's when they yeast will or won't make large amounts of esters, fuesel alcohols, and other unsavory flavor compounds. I would take it farther and wait till ~64 (or as cool as you can get it) to pitch. stick it in the fridge for few hours.
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Offline Pinski

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Re: Pitching temp. vs. cool down time
« Reply #3 on: February 09, 2014, 12:54:07 PM »
Better to wait 2, 3, or 12 and pitch at 70.

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I would take it farther and wait till ~64 (or as cool as you can get it) to pitch.

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Offline HoosierBrew

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Re: Pitching temp. vs. cool down time
« Reply #4 on: February 09, 2014, 01:07:00 PM »
+1 to 64F.  A sanitized, frozen water bottle would cool that gallon from 80 to 64F pretty quickly if you stir. No pitching @ 80 F  !
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Offline howlinghound

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Re: Pitching temp. vs. cool down time
« Reply #5 on: February 09, 2014, 01:16:07 PM »
I recently pitched too soon (call impatience, error, or something else) -- won't do that again... I think I cooked the yeast...  Just don't let anything that is not sanitized come in contact while waiting from 140 to 70

The next batch was allowed to cool to the mid-sixties in my 35 degree backyard -- and it took a while without a chiller...  But this one is right on gravity targets and is safely undergoing carbonation as of last night.

Birthday is in a few weeks - hope my wife will get the wort chiller I have on my list.


Offline euge

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Re: Pitching temp. vs. cool down time
« Reply #6 on: February 09, 2014, 03:46:07 PM »
+1 to 64F.  A sanitized, frozen water bottle would cool that gallon from 80 to 64F pretty quickly if you stir. No pitching @ 80 F  !

+1 to that one. Way too easy to keep a few in the freezer all the time just for these types of situations. .. plus it is only one gallon. I'd do a water bath in the sink then add a bottle or two to finish it off.
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Offline flbrewer

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Re: Pitching temp. vs. cool down time
« Reply #7 on: February 09, 2014, 04:05:54 PM »


That's good to know going forward. I hate to do this, but may just dump it and start again next week. I'm fairly certain it was pitched right around 80 and my past experience doing that spells disaster. Live and learn.
« Last Edit: February 09, 2014, 04:45:50 PM by flbrewer »

Offline majorvices

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Re: Pitching temp. vs. cool down time
« Reply #8 on: February 09, 2014, 04:36:15 PM »
As others have stated, better to wait and pitch at proper temp. Even in my commercial setting, I have times where I have to wait to pitch the next day. It has - literally - never been a problem. Ever. Not once.

Best to try to get it pitched in under 12 hours from flame out though.
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Offline flbrewer

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Re: Pitching temp. vs. cool down time
« Reply #9 on: February 10, 2014, 05:58:29 AM »
For those of you who said they wait to pitch...are you still oxygenating the wort prior to pitching, or waiting to oxygenate after pitching?

Offline klickitat jim

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Re: Pitching temp. vs. cool down time
« Reply #10 on: February 10, 2014, 06:31:01 AM »
I aerate right before pitching. Cold liquid holds more dissolved gasses.

Online Jimmy K

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Re: Pitching temp. vs. cool down time
« Reply #11 on: February 10, 2014, 06:32:43 AM »
I aerate right before pitching.
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Offline euge

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Re: Pitching temp. vs. cool down time
« Reply #12 on: February 10, 2014, 07:36:29 AM »
Always before. I use a drill and paint-stirrer to do it. Whether it matters or not it feels like I'm beating up my yeast if pitching before aeration.
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Offline reverseapachemaster

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Re: Pitching temp. vs. cool down time
« Reply #13 on: February 10, 2014, 08:00:01 AM »
If it's late at night and the wort is at 80 then I'll go ahead and pitch and stick it in the fermentation chamber, especially if it's a small batch. The wort gets down into the 60s within 30-60 minutes.
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Re: Pitching temp. vs. cool down time
« Reply #14 on: February 10, 2014, 03:17:50 PM »
Aerate right before for me.
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