Growler carbonation preservation idea

korndog · 03-02-2008, 02:41 PM

I was thinking about using Teflon tape around the mouth of the growler to preserve carbonation for a bit. Anybody see any merit in this idea?

Thanks
KD

KiltLifter · 03-03-2008, 02:05 PM

The threads don't do the sealing, the flat underside of the cap does. I've saved a number of plastic caps for mine that seal well. One of them even has a valve on it so I can add gas (yes, I know, dangerous, but the thing had 10 PSI from the original beer anyway, right?). If you refill it at a pub, don't bring a cap cuz they'll put a new one on (and often throw away your old one).

RoaringBrewer · 03-03-2008, 04:00 PM

Quote:

Originally Posted by KiltLifter

The threads don't do the sealing, the flat underside of the cap does. I've saved a number of plastic caps for mine that seal well. One of them even has a valve on it so I can add gas (yes, I know, dangerous, but the thing had 10 PSI from the original beer anyway, right?). If you refill it at a pub, don't bring a cap cuz they'll put a new one on (and often throw away your old one).

With this said (underside of cap does sealing), you may be able to fab something really simple up to help hold the carbonation. A neoprene washer or something (soft foodgrade plastic?) cut to the inside diameter of the lid and adhered somehow, might work... When you tighten it on the glass lip pushes into the washer instead of just sitting near a flat hard plastic surface without a perfect seal?

ThomRuley · 03-06-2008, 02:02 AM

While I was reading this I had an idea. Might it be possible to use beeswax to seal the cap? Beeswax is fairly inert and should have minimal reaction with the beer and the sanitizer solution. If anyone has experience with this let me know if this is a really dumb idea.

Thanks

Tom