Half yeast now, half later, or all later?

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Half yeast now, half later, or all later?

Postby MedTech » Sat Feb 12, 2011 4:07 pm

I brewed a beer last minute today and decided to use dry yeast since I didn't have a starter. I don't have enough for the batch. Should I pitch what I have now and more tomorrow when the store opens or wait til tomorrow and pitch it all at once?
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Re: Half yeast now, half later, or all later?

Postby catsdrinkbeer » Sat Feb 12, 2011 4:36 pm

So I'm guessing you have one packet and 10 gal. of wort?
I'd wait until tomorrow if I felt I had great sanitation. The only problem I could see with pitching two separate times is that there is little to no oxygen for the yeast on the second pitch, I'd be inclined to wait if I could pitch under 24 hours after cooling.
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Re: Half yeast now, half later, or all later?

Postby MedTech » Sat Feb 12, 2011 5:07 pm

actually I have two packets but it's 10 gallons of bock at 50f and I really wanted to pitch 4. I can have two more in about 15 hours. I feel pretty comfortable with sanitation so I will wait til tomorrow. thanks for the reply.
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Re: Half yeast now, half later, or all later?

Postby guitrman1 » Sat Feb 12, 2011 5:42 pm

MedTech wrote:actually I have two packets but it's 10 gallons of bock at 50f and I really wanted to pitch 4. I can have two more in about 15 hours. I feel pretty comfortable with sanitation so I will wait til tomorrow. thanks for the reply.


I would pitch the two packets unless it was ridiculously high gravity
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Re: Half yeast now, half later, or all later?

Postby MedTech » Sat Feb 12, 2011 5:53 pm

1.080 I think I'll need 4, mrmalty says 6 :shock:
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Re: Half yeast now, half later, or all later?

Postby pclemon » Sat Feb 12, 2011 6:23 pm

Not sure, from a yeast propogation standpoint which is the BEST path - but will say that if it were me I would do 2 now and 2 later.
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Re: Half yeast now, half later, or all later?

Postby guitrman1 » Sat Feb 12, 2011 7:38 pm

how do you oxygenate?
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Re: Half yeast now, half later, or all later?

Postby MedTech » Sat Feb 12, 2011 7:59 pm

Whirlpool chiller then inline o2 stainless stone flowing 1lpm on the way to conical.
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Re: Half yeast now, half later, or all later?

Postby Beer4Guy » Sun Feb 13, 2011 9:10 am

With that high of OG, you need a lot of O2. I would pitch the 2 packets and hit it with O2 as soon as you get to your target fermenting temperature, then pitch and hit with O2 once you get more yeast. It's not uncommon for breweries to hit a high OG wort with a second dose of O2 within the first 24 hours.

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Re: Half yeast now, half later, or all later?

Postby MedTech » Sun Feb 13, 2011 10:15 am

I didn't add yeast yesterday so I'll be pitching 4 packets of yeast in an hour. I'll reattach my o2 tee and blow some more o2 into the conical before pitching the yeast.
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Re: Half yeast now, half later, or all later?

Postby Blackcap145 » Tue Feb 10, 2015 9:33 pm

I'd wait until tomorrow if I felt I had great sanitation. The only problem I could see with pitching two separate times is that there is little to no oxygen for the yeast on the second pitch, I'd be inclined to wait if I could pitch under 24 hours after cooling....???
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Re: Half yeast now, half later, or all later?

Postby Brewtime » Mon Feb 16, 2015 12:42 pm

Blackcap145 wrote:I'd wait until tomorrow if I felt I had great sanitation. The only problem I could see with pitching two separate times is that there is little to no oxygen for the yeast on the second pitch, I'd be inclined to wait if I could pitch under 24 hours after cooling....???


Dude the post is 4 years old I think he already piched his yeast by now :P
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Re: Half yeast now, half later, or all later?

Postby MedTech » Mon Feb 16, 2015 4:32 pm

Actually, I've been waiting this whole time. I think the wort is no good now. Time to toss it and start again. :mrgreen:
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Re: Half yeast now, half later, or all later?

Postby tookalisten » Mon Feb 16, 2015 6:13 pm

Best posts we have had in a while.
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