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Old 03-31-2013, 12:30 PM   #11
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Caps I have seen corrode do so on the edges - not really an issue but definitely not "nice". You should treat your beer nicely but I can't imagine the rust I have seen hurting the beer in any way. So long as that seal on the inside is intact you should be fine. Use them if you are out but replacing them is too cheap to let you sit and worry about them.

That being said you might have found a new way to make them worse then I have ever seen - use common sense.

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Old 03-31-2013, 12:53 PM   #12
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Originally Posted by doubletapbrewing View Post
I used star San as well. I also have a question about this. I soaked the entire bag, about 60 caps, in the solution and only ended up using 49 of them. The others I just kind of dried off and put back in the bag. When I was going to bottle my next batch, I noticed that some had a small amount of rust on them. Are they still ok to use or should I just pitch them? I guess I will just count on the amount I need about 50 and sanitize them for next time.
The exact same thing happened to the leftover Brewers Best caps from our first brew. I dried off the Star San really well and then put them away in a ziplock bag. By the next week I noticed that there were rust stains on the bag from the edges of the caps, so I threw them out.

Next time, I won't soak as many and if there are any extra, I'll let them air-dry and see if that makes a difference.
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Old 03-31-2013, 03:13 PM   #13
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Quote:
Originally Posted by LBussy
Caps I have seen corrode do so on the edges - not really an issue but definitely not "nice". You should treat your beer nicely but I can't imagine the rust I have seen hurting the beer in any way. So long as that seal on the inside is intact you should be fine. Use them if you are out but replacing them is too cheap to let you sit and worry about them.

That being said you might have found a new way to make them worse then I have ever seen - use common sense.
Ya the rust is in the same spot you mentioned, would be in the outside of the bottle. Mine were also BB caps, I wonder if they use a cheaper type.
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Old 03-31-2013, 03:36 PM   #14
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Seems to me they're just plain caps,not the o2 barrier type. I have a bag of them from a year ago that're still dry & clean as new. Gotta use'em up on the latest batch.

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Old 03-31-2013, 03:45 PM   #15
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I always boil my bottle caps to sanitize, and it works fine.

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Old 03-31-2013, 03:53 PM   #16
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Hmmm... According to the Northern Brewer website, BB caps are made of different metal than regular gold caps, making them easier to crimp. Perhaps they're more likely to corrode after exposure to acids like Star San. Since the sheet they're punched from is probably coated on both sides, it's probably just the edges that are affected by this.

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Old 03-31-2013, 03:57 PM   #17
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Quote:
Originally Posted by doubletapbrewing
I used star San as well. I also have a question about this. I soaked the entire bag, about 60 caps, in the solution and only ended up using 49 of them. The others I just kind of dried off and put back in the bag. When I was going to bottle my next batch, I noticed that some had a small amount of rust on them. Are they still ok to use or should I just pitch them? I guess I will just count on the amount I need about 50 and sanitize them for next time.
I ran in to the same thing. Tossed the rusted ones out. I now rinse the left overs I don't end up using after I've capped all my bottles....
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Old 03-31-2013, 04:07 PM   #18
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Quote:
Originally Posted by amie View Post
Hmmm... According to the Northern Brewer website, BB caps are made of different metal than regular gold caps, making them easier to crimp. Perhaps they're more likely to corrode after exposure to acids like Star San. Since the sheet they're punched from is probably coated on both sides, it's probably just the edges that are affected by this.
Hmmm...& I was going to do the usual quick dunk in starsan before placing the BB caps on the bottles. I do this with the usual o2 barrier caps & they stay clean. I hope after being crimped in place they don't rust on the inside edges of the crimped part...?...
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Old 03-31-2013, 06:39 PM   #19
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I didn't notice the BB caps that I put on the bottle rusting. I wonder why that is?

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