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Old 02-14-2013, 04:07 PM   #1
suzanneb
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Default How long can wort sit without yeast

brewed up a batch of yeti imperial stout the other day and haven't added the yeast yet?
i am thinking of making a starter today and waiting a couple days to add.

so my question is will this work. can you wait 4 days between brewing and pitching?

do i need to re aerate??
any other suggestions?

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Old 02-14-2013, 04:11 PM   #2
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the concern is infection. if you are VERY VERY anal about sanitizing you could do this. if you are waiting, you might as well use a portion of your wort as your starter. in other words, pour your wort into two fermenters, 1 gallon in one and 4 in the other. your fermenter with one gallon becomes your "starter beer" -- then when it is at high krausen, add it to your "main" fermenter with 4 gallons of wort.

be VERY anal about sanitation. wild yeasts and bacteria love the sugars in the wort and if no brewers yeast is present for a period of time, you have a decent chance of infection.

yes, aerate. it is pointless to aerate wort and let it sit for 3 days and then aerate again. just aerate the second time, right before pitching.

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Old 02-14-2013, 04:13 PM   #3
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Thats pretty dangerous. You are essentially giving any wild yeast or other nasties plenty of time to set up shop and start fermenting your precious wort. Needless to say, mold will likely want to set up shop right away too. If you can store it in an airtight and cold environment, you will improve your chances.

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Old 02-14-2013, 04:19 PM   #4
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I would flat out say no. You can play russian roulette as well and I would not recommend that either.

The longer you wait the greater the chance of infection becomes. I would say 12 to 24 hours max and only in the case of the overnight cooling method with crazy sanitation.

I am sure I am over reacting a bit but dang why take a chance when you have spent the time and money getting it to the point that all you have to do is pitch the yeast.

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Old 02-14-2013, 04:32 PM   #5
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I just did this. I just did a no-chill in my bucket with an airlock, aerated, and pitched after 3 days. We'll see how it goes.

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Old 02-14-2013, 04:32 PM   #6
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I mean I aerated when I pitched.

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Old 02-14-2013, 04:34 PM   #7
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Subscribed for result.

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Old 02-14-2013, 04:34 PM   #8
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I normally follow pretty decent sanitizing procedures: sanitize bucket well (let it sit with star san for most of the brew day), after chilling just dump (i don't filter). I have let it sit for 3 days just fine. I get a little worried after that long, but it normally turns out just fine. I typically let my wort sit for 12-24 hours to get to pitching temps and *knock on wood* never have had an issue. If you keep your sanitizing decent (no need to be overly anal, just use common sense) and you don't store it at 80-90 degrees (higher temps are more favorable to bacteria and yeast growth) you'll probably be fine, check the airlock before you pitch though, if it's bubbling then you're screwed.

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Old 02-14-2013, 04:38 PM   #9
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some of you guys are making me nervous.
it is in a sabntized carboy with an airlock. i guess there could be wild yeasts in the head space in the carboy but is there some other way to wild yeasts could get in there????

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Old 02-14-2013, 04:47 PM   #10
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look into the no-chill thread. those guys will make wort and let it set around for months before pitching.

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