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Old 12-10-2017, 10:05 AM   #1
jceg316
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Default Using a cooler as a fermenter

Yesterday I brewed a beer and as per usual I transferred the finished wort into my fermenter, which started leaking. If I wanted any beer from that batch I couldn't keep it in there, but the only food safe vessel I had was a rubber maid type cooler once used as a mash tun.

The wort is sitting in there, slowly being turned into beer by the yeast. It's all good for now, but there is no way for the CO2 to escape. My plan is to open the lid slightly once a day for the next couple of weeks, but was wondering if anyone has any ideas on how to let the gas escape from the cooler without having to lift the lid? I can't drill into the top of it.

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Old 12-10-2017, 10:16 AM   #2
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Does the lid snap on tight or just sit on the top?
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Old 12-10-2017, 10:21 AM   #3
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Quote:
Originally Posted by Ciaran12s View Post
Does the lid snap on tight or just sit on the top?
At the moment it's sitting on top, but for it to be closed it needs to be screwed on.
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Old 12-10-2017, 10:32 AM   #4
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if your concerned about the odd breeze blowing in an airborne nasty, you could use a sheet if aluminum foil to mold a close fitting lid without the need to screw down the lid. After a precautionary spray with your favorite no rinse sanitiser..
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Old 12-10-2017, 10:38 AM   #5
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I doubt very much that a cooler will be airtight. I reckon the CO2 will escape just fine with the lid shut.
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Old 12-10-2017, 01:15 PM   #6
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I agree with thumper.
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Old 12-10-2017, 04:41 PM   #7
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My FV lid doesn't have a home for an airlock. I StarSan some clingfilm and lay that over the top. Its definitely not airtight but prevents insects and (most) microbugs entering. Plus it allows me to have a cheeky peek
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Old 12-10-2017, 07:41 PM   #8
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Thanks for all your replies. I was sitting next to the cooler today and noticed the smell of fermenting ale. The lid is half screwed on, which makes me think air can get out just fine and as @Thumper says it probably isn't airtight.
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Old 12-10-2017, 08:13 PM   #9
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As Thumper says the lid probably isnt air tight. What I do when fermenting beer is to cover the FV with cling film and hold it on with a big elastic band - never had a problem doing this in several years of brewing
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