Over carbing on serving pressure

[NatchezBrew]

I have had this happen to my last two kegs. To carb I set the pressure at 30psi for 36 hours. I then purge the head space with a few quick pulls of the relief valve on the sanke coupler. I normally disconnect to drink later. After hooking the keg back up carb is perfect after 3 days at serving pressure 5 psi it has become metallic. What am I doing wrong?

 

[Brewerforlife]

If not in a hurry, just use the set-and-forget method. Set head pressure to 10-14psi@ 38F and leave it for a week. It should be carbed to 2.38-2.75 vol. This will be same pressure applied all the time, till the keg is empty.

 

[NatchezBrew]

That's what I'm going to do next but any idea why it's over carbing? I thought the keezer temp of 34 might be the cause, colder temp causing more CO2 to dissolve.

 

[NatchezBrew]

No ideas from anyone?

 

[theck]

There was another thread here about metallic taste and overcarbing... Can't remember the outcome but might want to see if you can find it. I just set and leave at 11 psi... It shouldn't overcarb with that method.

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[theck]

https://www.homebrewtalk.com/f35/my-first-force-carbonation-452416/