Pre-gasing bottles? - Home Brew Forums
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Old 05-06-2013, 02:46 AM   #1
hoppybrewster
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OK, been thinking about these oxygen absorbing caps you can buy. Do they really work? Not sure any one could say they 100% work. So I was wondering, could you just let a little co2 into the bottle then cap it? Would you have to back off the priming sugar if you used this method?
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Old 05-06-2013, 03:32 AM   #2
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I have bottled beers that I have aged extensively, and never had oxidation issues. I wouldn't bother with the special caps. Of course, I've been corrected before, and am sure I will be corrected by those more knowledgeable in the future. One way to learn!
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Old 05-06-2013, 03:45 AM   #3
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I think the caps are BS. Wouldn't the absorb all the oxygen they could hold while sitting in the store?
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Old 05-06-2013, 12:16 PM   #4
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Quote:
Originally Posted by hoppybrewster
OK, been thinking about these oxygen absorbing caps you can buy. Do they really work? Not sure any one could say they 100% work. So I was wondering, could you just let a little co2 into the bottle then cap it? Would you have to back off the priming sugar if you used this method?
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Old 05-06-2013, 02:19 PM   #5
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Quote:
Originally Posted by hoppybrewster View Post
I think the caps are BS. Wouldn't the absorb all the oxygen they could hold while sitting in the store?
I have heard (on Basic Brewing, maybe) that they require contact with liquid to be activated. I spritz them with starsan right before capping.
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Old 05-07-2013, 12:03 AM   #6
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Old 05-07-2013, 01:15 AM   #7
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CO2 priming of bottles is ideal, as is using CO2 to move beer rather than an autosiphon. Not that I do either.

Sierra Nevada did years of research on the oxygen absorbing caps. I didn't find any published results in a quick search, but it is often referenced.
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Old 05-07-2013, 01:25 AM   #8
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I'd like to try this. I would like some advise from the wise ones on how to set this up, ie tanks, valves, whatever I need.
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Old 05-08-2013, 01:08 AM   #9
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Old 05-08-2013, 01:25 PM   #10
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My problem with prefilling bottles with CO1 before filling is that when you use a bottling wand you fill to the brim, then when you remove the wand it lowers the fill level to where it should be but that space is filled with O2 and you lost all your CO2. Unless of course you flooded a bin in CO2 and filled in there.

Oops I meant CO2. You really do not want to fill your beers with Carbon Monoxide.

 
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