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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Fermentation only lasted 2 days.
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Old 05-25-2012, 03:32 AM   #1
Jdb2012
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Default Fermentation only lasted 2 days.

I am making a coffee porter from a recipe that I got from a local brew shop. This is my 3rd beer. I am a bit concerned that I did something wrong because the fermentation ended on the third day. Is this ok?


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Old 05-25-2012, 03:33 AM   #2
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what makes you think it ended?


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Old 05-25-2012, 03:35 AM   #3
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the rate of CO2 formation slowed. it is bubbling once every 12-15 secs.
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Old 05-25-2012, 03:38 AM   #4
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It is definitely still fermenting. lack of airlock activity is not a good indicator of fermentation. I'd suggest buying a hydrometer and taking a reading after 10 days. Then take another one 2 days later. If the gravity is the same, then its done fermenting.

Three days of a constant gravity reading is the only real way to tell if its done.

Edit: I meant to say 10 days minimum. I don't start taking readings until at least two weeks
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Old 05-25-2012, 03:41 AM   #5
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Quote:
Originally Posted by JohnnySardonic View Post
It is definitely still fermenting. lack of airlock activity is not a good indicator of fermentation. I'd suggest buying a hydrometer and taking a reading after 10 days. Then take another one 2 days later. If the gravity is the same, then its done fermenting.

Three days of a constant gravity reading is the only real way to tell if its done.

Edit: I meant to say 10 days minimum. I don't start taking readings until at least two weeks
This...

You cannot judge fermentation being complete by airlock activity.
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Old 05-25-2012, 03:43 AM   #6
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I'm in San Marcos & I'm a little let down. You created two posts for the same thing. North County people are better than that!
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Old 05-25-2012, 06:24 AM   #7
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Patience ! It's not done ! Leave it alone for another 18 days , then take a hydrometer reading and you'll be ready to bottle or keg your beer.
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Old 05-25-2012, 06:40 AM   #8
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What was your OG? If it was below 1.060, it's perfectly normal to get through primary fermentation in 48 to 72 hours. I agree with the others in that you should take a gravity reading to see where you are. However, you don't need to take another three weeks before you bottle. If your gravity readings are stable for at least 3 days in a row, you're ready to package.
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Old 05-25-2012, 07:21 AM   #9
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Quote:
Originally Posted by gr8shandini View Post
What was your OG? If it was below 1.060, it's perfectly normal to get through primary fermentation in 48 to 72 hours. I agree with the others in that you should take a gravity reading to see where you are. However, you don't need to take another three weeks before you bottle. If your gravity readings are stable for at least 3 days in a row, you're ready to package.
He's right . You can take readings every few days , wasting beer , until you reach your FG , but why rush it ? Let it do its thing. Drink ALL your beer .

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Old 05-25-2012, 07:32 AM   #10
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LOL here we go again! Leave it alone for 3-4 weeks then check gravity, it should be done then bottle or keg. 12-15 seconds is still fermenting for sure at 3 days.


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