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Old 02-17-2008, 03:28 AM   #1
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Default Beer is stil flat... Why do you think?

Howdy,

My beer has been in the plastic bottles for 2 weeks so everything was good but I put them in the fridge and tried one the next day and it's still flat! Any ideas why it's still flat if the bottles have expanded and co2 had been released?

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Old 02-17-2008, 03:33 AM   #2
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Head space?

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Old 02-17-2008, 03:37 AM   #3
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Well by headspace do you mean the empty gap at the kneck? If so I would say 1.5 inchs

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Old 02-17-2008, 04:53 AM   #4
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I don't know about the PET bottles but with the bottle's I use, I leave 1/2" head space and 1 " is recommended. Are you using a Mr.Beer?

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Old 02-17-2008, 05:36 AM   #5
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Nope no MR Beer. I use a bucket for bulk priming and then use a spigot to fill my green plastic bottles. I fill them up and leave some space then squeeze air out and then cap.

Then it ferments and CO2 filled the bottle. WHen the bottles filled up this time after 2 weeks I put them in the fridge but after 1 day in the fridge they are still flat. Any idea why or do I just need to give it a few days in the fridge?

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Old 02-17-2008, 06:14 AM   #6
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What temp were the bottles stored at for carbonation? I'm talking actual temperatures of the bottles. You would like to see 70F so the yeast can work on the corn sugar. Never put them in the fridge until you know they have carbed because that makes the ale yeast stop working. Put them back out in a 70F room.

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Old 02-17-2008, 01:11 PM   #7
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You shouldn't squeeze the air out. When you fill them up, leave some head space and cap. When the sugar starts fermenting, and off gassing, it will force the CO2 into the beer as carbonation.

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Old 02-17-2008, 01:17 PM   #8
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Sounds to me like you just didn't give it a long enough time prior to cooling (as mentioned above). You probably had enough conversion of sugar to alcohol and CO2 to inflate the bottles but not an abundance. Take them out and let them sit at room temperature for about 10 days. How long did the beer condition prior to bottling? It takes a long time, but the yeast can peter out. You might have been running on minimal yeast when you bottled.

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Old 02-17-2008, 02:12 PM   #9
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We stored an IPA cold for about 3 weeks that never carbonated. After moving it into a 70 degree environment and agitating the bottles, it was carbed up in about 3 days. Perhaps a try at this before you start uncapping bottles.

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Old 02-17-2008, 03:07 PM   #10
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Thanks for the info guys. I had it in the basement of a room temp of 65F for 2 weeks. I pulled them out of the fridge and will leave them for 2 more weeks until I put them back in.

I figured it might be early but i wanted to see if i could get them ready for a party....

thanks for the input guys
grimmy

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