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Old 02-03-2013, 10:03 PM   #21
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yeah,I thought a short period of time till crimping them works ok so far. the quicker the better.
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Old 02-03-2013, 10:11 PM   #22
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The guy at my LHBS today told me not to use the oxygen absorbing caps with hoppy beers because they absorb the hop aroma.

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Old 02-03-2013, 11:54 PM   #23
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The guy at my LHBS today told me not to use the oxygen absorbing caps with hoppy beers because they absorb the hop aroma.
Although it is possible that some of the turpenes might adhere preferentially to the membrane of the cap, there is no way that they will cross the membrane nor will they react with the material that reacts with the oxygen.
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Old 02-04-2013, 12:28 AM   #24
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The guy at my LHBS today told me not to use the oxygen absorbing caps with hoppy beers because they absorb the hop aroma.
This reminds me of a Mr. Wizard question in the October 2012 issue of BYO. Someone had asked why hoppy beers do not hold up well in bottles. He asked Dr. Peacock, an expert on hops, and go the answer that:

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the polymeric liners used in bottle crowns to prevent oxygen ingress have a very strong affinity for aromatic hydrocarbons, just the sort of compounds associated with hoppy aromas....many of the most desirable aromas associated with hoppy brews are adsorbed by crown liners before most commercial beers ever make it into the consumer's glass
I think this a rather important point and I was surprised to not find a discussion of it here when the issue came out. It seems to me that if that was the case there would be a strong market for beer caps which were made of some other polymer that didn't adsorb hops!
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Old 02-04-2013, 12:37 AM   #25
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Sounds to me like you're being deployed. If that's the case, thanks very much for your service and may God bless you and your unit.

Hope the brew turns out tasty.
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Old 02-04-2013, 12:43 AM   #26
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So, when you use them, do you, fill the bottle, quick rinse the caps in starsan then cap right away? I didn't know you didn't want to soak them in starsan while bottling.... Bummer! Oh well live and learn I guess

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Old 02-04-2013, 04:11 AM   #27
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With the oxygen barrier caps, I dip one at a time in star san and cap it right away.

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Old 02-04-2013, 04:19 AM   #28
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Those caps are a gimmick

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Old 02-04-2013, 04:26 AM   #29
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I don't sanitize my oxygen absorbing caps. I also keep them sealed away to reduce potential nasties. Very little can survive in finished beer (anaerobic, alcohol, hop oils), and there is a strong yeast population. There are caps that are oxy barrier caps but some do absorb oxygen. The absorbing type of caps activate as soon as they get wet and stop absorbing quickly, so the only thing to absorb would be atmosphere. Alternatively, keggers can purge the bottles with co2 first to have the same effect.

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Old 02-09-2013, 04:01 PM   #30
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Quote:
Originally Posted by Erroneous
I don't sanitize my oxygen absorbing caps. I also keep them sealed away to reduce potential nasties. Very little can survive in finished beer (anaerobic, alcohol, hop oils), and there is a strong yeast population. There are caps that are oxy barrier caps but some do absorb oxygen. The absorbing type of caps activate as soon as they get wet and stop absorbing quickly, so the only thing to absorb would be atmosphere. Alternatively, keggers can purge the bottles with co2 first to have the same effect.
So you mean to say its okay not to sanitizer them? Or is it that they come Pre- sanitizer anyway ? I intend to use them in my current brew!
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