Author Topic: Lingering Cola smell...  (Read 834 times)

Offline evandy

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Lingering Cola smell...
« on: November 20, 2010, 08:23:34 PM »
I have a couple of kegs that still have a lingering cola smell.  They've all been PBW soaked a number of times, and had complete gasket replacements.  I have served a couple beers that didn't pick up any noticeable cola odor, so it's probably not a big deal.  But does anyone know how to remove this long-lasting odor from the keg?  I've heard both that bleach might fix the problem... and that you should not use bleach in stainless, as it will pit it pretty quickly.  If bleach is the right answer, what concentration should be used?

Thanks.

Offline 1vertical

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Re: Lingering Cola smell...
« Reply #1 on: November 20, 2010, 08:30:40 PM »
My experience with this event was that I washed em out with rubbing alcohol
then exposed em to sunlight and fresh air for a few days (outdoors)....the cola odor vanished.
I presume that the UV exposure was a prominent variable.
I also remove the posts and clean all that as well.
« Last Edit: November 20, 2010, 09:23:18 PM by 1vertical »
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Offline oscarvan

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Re: Lingering Cola smell...
« Reply #2 on: November 20, 2010, 09:18:13 PM »
And to think that people DRINK that stuff....... :o
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
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Offline evandy

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Re: Lingering Cola smell...
« Reply #3 on: November 21, 2010, 06:58:27 AM »
My experience with this event was that I washed em out with rubbing alcohol
then exposed em to sunlight and fresh air for a few days (outdoors)....the cola odor vanished.
I presume that the UV exposure was a prominent variable.
I also remove the posts and clean all that as well.

I also remove the posts, and leave the kegs submerged, inverted, in PBW for a while, followed by a good scrub, especially when new.  The Light, Sun, & UV sounds like a good idea... I'll give it a try and let you know.

Offline tallcall

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Re: Lingering Cola smell...
« Reply #4 on: November 21, 2010, 10:12:29 PM »
I had one with a rootbeer smell filled with water and added 1/4 cup of baking soda left it over night, no more smell.

Offline euge

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Re: Lingering Cola smell...
« Reply #5 on: November 21, 2010, 11:22:51 PM »
Oxyclean!

Break the keg down. Wash thoroughly. Soak posts in oxyclean solution.
The first principle is that you must not fool yourself, and you are the easiest person to fool. -Richard P. Feynman

Offline markaberrant

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Re: Lingering Cola smell...
« Reply #6 on: November 22, 2010, 01:05:45 PM »
Oxyclean!

Break the keg down. Wash thoroughly. Soak posts in oxyclean solution.

I have done this several times on a couple of new to me kegs, and still couldn't get rid of the smell.

Offline euge

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Re: Lingering Cola smell...
« Reply #7 on: November 22, 2010, 05:54:52 PM »
That's a damn shame. :-\
The first principle is that you must not fool yourself, and you are the easiest person to fool. -Richard P. Feynman

Offline oscarvan

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Re: Lingering Cola smell...
« Reply #8 on: November 22, 2010, 08:12:49 PM »
I would think 5 gallons of bear would raise, see and beat a few ounces of liquid carcinogen......
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
http://www.woodenshoemusic.com/WSBW/WSBW_All_grain_Setup.html
I brew WITH style..... not necessarily TO style.....

Offline markaberrant

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Re: Lingering Cola smell...
« Reply #9 on: November 23, 2010, 05:24:56 AM »
I would think 5 gallons of bear would raise, see and beat a few ounces of liquid carcinogen......

But where does one get 5 gallons of bear?

Offline abraxas

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Re: Lingering Cola smell...
« Reply #10 on: November 23, 2010, 05:37:00 AM »

I presume that the UV exposure was a prominent variable.

I'd love to get a UV light for equipment storage... especially hoses and fittings.  I looked one time and couldn't find anything for building my own box.

Offline richardt

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Re: Lingering Cola smell...
« Reply #11 on: November 23, 2010, 07:10:08 AM »
One possibility is that the SS corny held rootbeer at one time.  That smell is hard to eliminate.

You said you replaced all the gaskets--good.

Have you taken a sponge/scour pad and scrubed the entire interior of the vessel? 
It isn't fun--and it is hard to get one's arm all the way in there sometimes, but it has to be done.
Don't forget to clean the gas-in and fluid-out pick up tube both inside and out.
Use the corny keg tube cleaner brush--it looks like a gun barrel rod brush.
IME, some chemicals (e.g., oxyclean) still require elbow grease to get the crud/biofilm off.

Offline Joe Sr.

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Re: Lingering Cola smell...
« Reply #12 on: November 23, 2010, 08:55:18 AM »
Rather than trying to cram your arm down inside, a toilet brush works well for scrubbing cornies.

For obvious reasons, you would want a brand new dedicated brush.
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Offline tom

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Re: Lingering Cola smell...
« Reply #13 on: November 23, 2010, 09:26:55 AM »
If you have replaced all of the rubber O-rings, then the smell is probably from the rubber top. And no worries about that.
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Offline oscarvan

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Re: Lingering Cola smell...
« Reply #14 on: November 23, 2010, 11:30:50 AM »
I would think 5 gallons of bear would raise, see and beat a few ounces of liquid carcinogen......

But where does one get 5 gallons of bear?

In the woods.
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
http://www.woodenshoemusic.com/WSBW/WSBW_All_grain_Setup.html
I brew WITH style..... not necessarily TO style.....