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bad caps?

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BubbaK

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I recently purchased the 5lb bag of colored caps from AHS and the last 2 batches I capped have not carbed properly. Some have been fine, while others had no carbonation at all. I've bottled 20 batches or so with no trouble <knock on wood>. I just bottled another batch this morning and I am trying to figure out whats going on. I noticed after I capped a bottle, the cap can twist still. I am using a bench capper. I've never checked before, so I'm not sure if any other batches have been like that. I always turn upside down for a leak check, but never check this. I used my wing capper to hit any of the loose ones again, and they seemed to tighten a bit more with no more twisting of the cap. I don't know if the bench capper is wearing out, the caps are bad, the bottles are bad or what else could be causing this, but I need to get to the bottom of it before I get too far along. I reuse my bottles, and the majority are Sam Adams bottles.
 
chances are you are right about the caps being loose being the culprit. just because they are liquid tight doesn't mean they are air tight. my guess would be its the capper or operator error.
 
I don't believe operator error.. not 2-3 batches in a row from the same batch of caps after 20+ consecutive good batches. Bad capper or caps.. I used 2 different cappers and while my winged capper was able to make the caps tighter it still took 2-3 tries before some were tight enough...

To go back and fix these bottles with loose caps. I'm sure there is no priming sugar left. How do I go about adding to these to recap and carb?
 

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