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Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > let unfermented beer sit overnite ?
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Old 11-02-2012, 04:56 AM   #1
ninkasi2012
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Default let unfermented beer sit overnite ?

I want to do 2 1gallon batches using liquid yeast. I normally use dry yeast so I want 2 compare using a liquid yeast.
At this point I don't want 2 make a starter until I see the results of liquid yeast vs dry yeast.

The yeast I happen to have is a Wyeast Smack-pack. Can I brew a beer and leave it over night and brew another batch of beer. Then once I open the yeast I can then split it in 2. Is there any harm is brewing a beer and let it sit in the fermenter (closed) without yeast ?


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Old 11-02-2012, 05:21 AM   #2
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everything i've read says it's not a good idea. there will be air the headspace, and that air will contain some amount of contaminants. overnight might be enough time for them to take hold.

you should look into (AKA search for) "no-chill brewing". note that you need to use a specific type of container, one that you can squeeze to get all the air out (and super-heat what little air is left)


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Aging: witbier with brett, TYB saison brett blend, Tripel'ish with brett, sour cherry mead, rye sour ECY20/ECY34 split, several other sours, acerglyn, and probably some stuff i've lost track of...
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Old 11-02-2012, 01:19 PM   #3
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I've never personally done it, but my brew buddy has when his chiller broke. He was fine but just be super sure that everything is extremely clean. Remember, you are creating a great growth medium for microorganisms (i.e. yeast, mold, germies, etc) and anything funky is lurking in your fermenter it will definitely take off overnight.
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Old 11-02-2012, 01:30 PM   #4
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I've left wort overnight before in a glass carboy in the fermentation chamber without issue. 8-12 hours is OK, but any more than that and the wort definitely starts to turn rather quickly.
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Old 11-02-2012, 02:02 PM   #5
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I've left it for 7 DAYS without living yeast in wort before (shipped dead yeast, pitched anyway, hoped for the best, got my yeast replaced, repitched) without any contamination.

Are you absolutely confident in your sanitation practices? Then it won't be a problem. If there is one hole though, you'll have issues.
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Old 11-02-2012, 02:07 PM   #6
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Did it all the time in early days before I had a way to chill. No issues.
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Old 11-02-2012, 02:11 PM   #7
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Get an immersion chiller when you can, but I've done it many times. Heck it sat sometimes for a few days because the yeast didn't start. No infections as yet.

Just make sure you are meticulous about sanitation processes.
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Old 11-02-2012, 03:32 PM   #8
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Quote:
Originally Posted by kroach01 View Post
Just make sure you are meticulous about sanitation processes.
This ^^^ is the most important part.
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Old 11-02-2012, 08:53 PM   #9
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Quote:
Originally Posted by ninkasi2012 View Post
I want to do 2 1gallon batches using liquid yeast. I normally use dry yeast so I want 2 compare using a liquid yeast.
At this point I don't want 2 make a starter until I see the results of liquid yeast vs dry yeast.

The yeast I happen to have is a Wyeast Smack-pack. Can I brew a beer and leave it over night and brew another batch of beer. Then once I open the yeast I can then split it in 2. Is there any harm is brewing a beer and let it sit in the fermenter (closed) without yeast ?
can't you brew enough wort at one time? why brew 1 gallon the first night and a second gallon the next? why not brew 2 gallons, then split that? i suspect i'm not understanding what you're trying to do...
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What hops should I grow? Looking for cheap honey?

Drinking: black harvest ale (wet-hopped with my homegrown hops), witbier, hoppy saison, Tripel'ish, local sour cherry kriek, oud bruin, gueuz'ish thing, saison bottled with ECY34, imperial chocolate stout
Aging: witbier with brett, TYB saison brett blend, Tripel'ish with brett, sour cherry mead, rye sour ECY20/ECY34 split, several other sours, acerglyn, and probably some stuff i've lost track of...
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Old 11-03-2012, 03:20 AM   #10
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thank you everyone for your responses...


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