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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Is boiling the caps a bad idea?
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Old 12-24-2013, 04:11 PM   #11
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Originally Posted by IL1kebeer View Post
Bad advice. Caps have all sorts of crap over them. How do you think they get into the bag? They sure as heck aren't kept in a sterile lab with a sterile robot dumping them in. This was even mentioned on a Brewing Network podcast and one of the guys from Morebeer admitted that caps aren't free of contaminants.
To each their own... Some are extremely paranoid about sanitation and some are just cautious. As has been mentioned, there are plenty of examples of successful bottling without autoclaving the caps or taking other extreme measures. If you are going to starsan your caps, then you can save money by buying regular caps since the o2 ones will be depleted by the time you use them.

Not trying to create a debate or argument. Never said the caps were sterile, very few things are sterile. Just saying, caps are used in bottling lines straight outta the bag, corks too.
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Old 12-24-2013, 04:15 PM   #12
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I drop my caps into a pan of water, bring it to a boil and off the burner ready to cap. I've never had a problem with them sealing. If I have extra caps I let them dry so I can use them on the next batch.

Those caps that I dunked in starsan and didn't use ended up getting thrown out because the rusted before I got another batch ready to cap.

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Old 12-24-2013, 04:27 PM   #13
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I've always boiled and only had the occasional bad seal (maybe 1 or 2 per batch). Doing the StarSan soak seems like a reasonable alternative.

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Old 12-24-2013, 04:31 PM   #14
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why some make this process more difficult then it really needs to be,

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Old 12-24-2013, 04:59 PM   #15
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I just leave the caps in my tub of StarSan and pluck 'em out as needed for bottling.

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Old 12-24-2013, 05:33 PM   #16
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According to this thread, O2 absorbing caps can be dunked in sanitizer (star-san or iodophor) just before capping. The sanitizer won't harm the O2 absorbing properties if the cap is used immediately after sanitizing. Once the O2 cap is activated it takes a week or so to work its magic.

Boiling is a different story. My guess is boiling the caps will boil off the 02 absorbing additive.

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Old 12-24-2013, 07:09 PM   #17
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Seriously, just spray with starsan and cap right after. It takes 2 extra seconds to spray... Not much more difficult than picking your nose

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