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I have tried set at 12.5 and leave 10 days and set at 30 and leave 3-4 days, I am not achieving bottle carb levels at all, ideas? Perhaps my gauges are out? The beer is carbed but just not as much as I wish for...
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Temperature, pressure, time, and agitation all have an effect.
What level of carbonation are you aiming for?
What temperature is this happening at?
Smiffy
about 7C and aiming for a typical IPA bottle conditioned beer carb say 2.5-2.7
seem to get to around 2.0 ish ok on my scale... I tend to set and leave not shake and bake...
how long do you normally set and leave for before considering it "ready"
on a typical keg?
My chart says you need 16 psig. (12.5 would give about 2.3 volumes).
I usually shake, but if I don't it certainly doesn't take 10 days, more like 5 for 25l kegs. Bigger kegs will take longer because of more depth, and corny kegs might take longer too because of the smaller surface area.
I can normally be drinking after a week and reach full carbonation at the 10-14 day mark. Most of the time I carb at 11-12 PSI @6C.
Have you checked to make sure you have no slow leaks or blockages in your gas line or regulator?
Sounds to me like your issue is with the temp. Like Smiffy said you need a fair bit of pressure at that temp to get to those volumes. For 2.5 volumes my calculator says 14.5psi. Problem with that is, you'd need really long lines to balance the pressure, also warmer temps promote foaming as Co2 comes out of solution much quicker.
I'm assuming your preference is to serve a little warmer at 7 degrees, but I'd suggest dropping it down to 4 and seeing what difference that makes. You should get to full carb within about 5 days with the set and forget method, at about 12PSI. Kegging is a trade off between ideal temp and ideal carbonation level, you just have to find a middle ground.
I will move the corny kegs to a smaller fridge that holds 2C no problems... and add an stc1000 for control.
My method (so far, still tweaking) targeting about 2.2-2.5 carb level
Fridge to 2C, let the beer chill to 2C (need to cold crash it anyway). Gelatine treatment after 4-5 days if its is a pale brew.
Set to 16psi and leave for 5-7 days.
Next tweak is to extract the Gelatine (if used) after 2 days then force carb at 30+PSI for 15mins whilst rocking, stand at 30 PSI for 1 day then try it. Going to try that tonight. Will know by Monday night how good or mad that idea is.
Well I tried the quick force carb option... and got a glass of snow cone sitting in front of me.
This option can work but it really is trial and error. I have turned the gas off on the keg, let the pressure out and will let it sit for two days before putting back on the tap.
Liking the ole 16psi for 5-7 days carbing myself.
My method:
If I'm not wanting to reuse the yeast I'll fine in the fermenter not the keg, then you can have the carbed beer that night.
Generally when I try to use more pressure than serving I screw it up.
I'll give that a go next time. Cheers
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