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Old 07-20-2011, 07:44 PM   #1
mbosco
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Hi All,

I have a batch of porter that I bottled in two separate bottle types. Most went into Sierra Nevada type bottles, while one six pack went into Fullers Londer Porter bottles. Now the strange part.... all of the SN bottles carb'd up fine with no issues (in about 3 weeks). Not one of the Fullers bottles has carb'd (6 weeks plus). I'm not saying zero carb, but pretty close. No head and no real fizz.

Has anyone seen different bottle shapes (but same bottle size) having that much of an impact on carbonation?

 
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Old 07-20-2011, 07:47 PM   #2
Cornraker
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I think it has more to do with the head space than the bottle type. Maybe the way you fill them is having an impact. Less air volume vs more, something like that

 
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Old 07-20-2011, 07:57 PM   #3
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I made a similar mistake as cornraker related when I 1st started using glass bottles. I read/saw somewhere to fill the bottle to the bottom of the collar. Got a big,nearly 2" head space on the Paulaner bottles.
Good thing I was still using cooper's carb drops. They all carbed ok with another week aging.
I've since started filling them all to the top. Then,as the bottling wand is withdrawn,I got the right head space. It's called volume displacement.
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Old 07-20-2011, 08:07 PM   #4
mbosco
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I actually used the Coopers drops on this batch as well. Also used bottling wand and filled all the way to the top so that the only space in the bottle is what was evacuated by the wand itself.

 
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Old 07-20-2011, 08:13 PM   #5
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^^^That's volume displacement.
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Old 07-20-2011, 08:23 PM   #6
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are you sure the tops sealed well. Most imports have a slightly different size crown, so the don't seal up as well with a wing capper

 
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Old 07-20-2011, 08:26 PM   #7
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Quote:
Originally Posted by JeepDiver View Post
are you sure the tops sealed well. Most imports have a slightly different size crown, so the don't seal up as well with a wing capper
I'm guessing this is the issue. Bench cappers work better on more types of bottles.
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Old 07-20-2011, 09:07 PM   #8
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IDK...I use bottles from all over the world,& don't have that issue. It could be the way you're capping them,if you really think that's it. But most likely,that's not the problem. All the imports I use seal just fine. I still think it's something in your process being overlooked or forgotten.
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Old 07-21-2011, 03:41 AM   #9
mbosco
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I did use a wing capper so that is a possibility. Seals seemed fine, but i'm guessing it would be hard to know for sure. Anyway to test????

union, not saying a process issue is impossible, but I doubt it. I've bottled about 20 cases of beer and this is the only six i've had issues with. Just strange because it wasn't a couple random bottles, but six specific bottles.

 
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Old 07-21-2011, 07:51 AM   #10
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way to test:

put suspect empty bottle in freezer

cap it

set it out and let it warm up and sit for a few days

open it... if you don't hear a good "fssssst" when you pop it, it wasn't sealed.
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