Don't partially fill a bottle... - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Don't partially fill a bottle...

Reply
 
Thread Tools
Old 09-17-2009, 10:30 PM   #1
IXVolt
HBT_LIFETIMESUPPORTER.png
 
IXVolt's Avatar
Recipes 
 
Apr 2009
Southern Oregon
Posts: 1,715
Liked 79 Times on 54 Posts



The last batch I bottled was a Haus pale ale, and when I got down to the last bit in the bottling bucket it wasn't enough for a full 12oz bottle. So I filled a little over half of a bottle. Not knowing better I figured what the hell I have the caps I'll just throw one on it and let it sit and see how it carbs up.


Take it from me, don't cap a bottle with that much head space.

Oh my....it was SOOOOO heavily carbonated.

I'm assuming due to all the compressible air space, the CO2 production went wild.

Upon opening the bottle there was a loud / long pressure release Psssssssst.

The bottle didn't gush so I was hopefull. I got out a glass and SLOWLY poured just a small bit into the glass, barely an ounce. As soon as the beer touched the glass it filled the entire glass with foam. Kind of like that spray foam you use to seal houses...


Need less to say I let it sit out over night and drank it the next day and it still had carbonation in it! The flavor was still quite over powered by the carbonation.

 
Reply With Quote
Old 09-17-2009, 10:37 PM   #2
ChshreCat
 
ChshreCat's Avatar
Recipes 
 
Aug 2008
Camano Island, Washington
Posts: 11,533
Liked 540 Times on 432 Posts


I think you're lucky you didn't get a bottle bomb. There have been several stories of half-filled bottles assploding on here.
__________________
"Science + beer = good!"
-Adam Savage

 
Reply With Quote
Old 09-17-2009, 10:39 PM   #3
IXVolt
HBT_LIFETIMESUPPORTER.png
 
IXVolt's Avatar
Recipes 
 
Apr 2009
Southern Oregon
Posts: 1,715
Liked 79 Times on 54 Posts


Yeah seeing how carbonated it was, I think I am lucky.

I thought bottle bombs were only from adding too much priming sugar...

 
Reply With Quote
Old 09-17-2009, 10:44 PM   #4
HoppyDaze
HBT_SUPPORTER.png
 
HoppyDaze's Avatar
Recipes 
 
Dec 2008
Wilsonville, OR
Posts: 12,110
Liked 2368 Times on 1649 Posts


it wasnt because of the head space...it was because the last bottle gets more sugar due to the sugar settling to bottom of the bucket
__________________
"Dad, Bob broke your beer!"

*Member: The HBT Sweaty Fat Guys Cigar club

Advice for posting

 
Reply With Quote
Old 09-17-2009, 10:46 PM   #5
ChshreCat
 
ChshreCat's Avatar
Recipes 
 
Aug 2008
Camano Island, Washington
Posts: 11,533
Liked 540 Times on 432 Posts


Quote:
Originally Posted by BobcatBrew View Post
it wasnt because of the head space...it was because the last bottle gets more sugar due to the sugar settling to bottom of the bucket
Then why doesn't the last bottle of every batch do that? No, a partially filled bottle will overcarbonate and possibly blow up.
__________________
"Science + beer = good!"
-Adam Savage

 
Reply With Quote
Old 09-17-2009, 10:52 PM   #6
HoppyDaze
HBT_SUPPORTER.png
 
HoppyDaze's Avatar
Recipes 
 
Dec 2008
Wilsonville, OR
Posts: 12,110
Liked 2368 Times on 1649 Posts


Quote:
Originally Posted by ChshreCat View Post
Then why doesn't the last bottle of every batch do that? No, a partially filled bottle will overcarbonate and possibly blow up.
It does for me....
__________________
"Dad, Bob broke your beer!"

*Member: The HBT Sweaty Fat Guys Cigar club

Advice for posting

 
Reply With Quote
Old 09-17-2009, 10:53 PM   #7
Malticulous
 
Malticulous's Avatar
Recipes 
 
Aug 2008
St. George Utah
Posts: 4,146
Liked 72 Times on 57 Posts


I found that when you have to tip the bucket you get sugar that settled to the bottom--that's why I stir it again mid run. I have 1-2 inch head space depending on the style of bottle and never notice a difference. I think oxygen is the bigger concern with too much head space and that is even over stated.
__________________
Everything is better with a beer.


 
Reply With Quote
Old 09-17-2009, 10:55 PM   #8
Brewsmith
 
Brewsmith's Avatar
Recipes 
 
Aug 2005
Torrance, CA
Posts: 6,252
Liked 62 Times on 58 Posts


In a normally filled bottle, the volume of compressed gas in the headspace is small. When you open the bottle, the pressure is released and the gas escapes. A normal PSSSST sound. The rest of the carbonation is in solution and comes out through the normal bubbles.

When you under fill a bottle, a much larger volume of gas in the bottle is now pressureized. It will be under a smaller pressure because of the less amount of CO2 produced by the beer, but when you open the bottle, all of that gas wants to come out, several times the amount of a normally filled bottle. That's when you get the big explosion of gas.
__________________
Fermenting:#160 Apollo/Calypso Pale Ale
Kegged:#153 Old Helicon Barleywine 2013, #157 Irish Red, #158 Mosaic IPA, #159 Bravo/Delta ESB
Up Next:Brown Porter, American Stout, Imperial Stout
My Recipes
Tuba Sonata

Smith & Co. Custom Tap Handles

 
Reply With Quote
Old 09-17-2009, 10:58 PM   #9
ChshreCat
 
ChshreCat's Avatar
Recipes 
 
Aug 2008
Camano Island, Washington
Posts: 11,533
Liked 540 Times on 432 Posts


Quote:
Originally Posted by BobcatBrew View Post
It does for me....
You need to mix your priming sugar better then. Or... this would be a good excuse to start kegging!
__________________
"Science + beer = good!"
-Adam Savage

 
Reply With Quote
Old 09-17-2009, 11:00 PM   #10
HoppyDaze
HBT_SUPPORTER.png
 
HoppyDaze's Avatar
Recipes 
 
Dec 2008
Wilsonville, OR
Posts: 12,110
Liked 2368 Times on 1649 Posts


I do keg...and it has nothing to do with how well I mix. if anything it could be that its taking too long to bottle allowing the sugar to settle. See previous post about re-mixing half way through
__________________
"Dad, Bob broke your beer!"

*Member: The HBT Sweaty Fat Guys Cigar club

Advice for posting

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fill Your Own Dang (CO2) Bottle. BigKahuna Equipment/Sanitation 32 12-21-2009 03:52 AM
How much to Fill Bottle DrSanta Bottling/Kegging 6 08-27-2009 06:26 PM
How long to fill a bottle? huffman Equipment/Sanitation 10 03-14-2009 11:34 AM
how much to fill bottle chemist308 General Techniques 6 01-21-2008 03:05 AM
C02 bottle fill McTarnamins Bottling/Kegging 8 03-26-2007 02:43 AM


Forum Jump