That's where the beauty of bottling into plastic soda bottles comes into it's own. You can feel the pressure on the bottles, and if it's too high you just slightly unwind the bottle cap and let excess pressure out and tighten it again. I'm not sure why not more people are doing this. It's very low cost and has so many advantages.
Great video, I've been using a spunding valve to correct overcarbonated beers I keg prime all my stuff nowadays, so it's easy to over/under carbonate. Basically I take a pressure reading after the keg has been chilling for a week (and is assumed to have reached equilibrium) . If the PSI on the spunding valve gauge is reading too high then I adjust the spunding valve to the "set it and forget it pressure" that alligns the keezer temp and target volume for a few days.
This is what I've done. Either disconnect the gas or close the gas line valve if you have a multiple keg manifold set up, so that you are not adding more CO2 as you off gas it over a few days. Then set CO2 at a lower level than before so you don't repeat the problem. It works.
That also works! If it's nearly full and way over-carbed (from additional fermentation) then fobbing through the gas-out might be a better bet but if there's decent head-space the PRV is prolly easier.
LOL I messed up my lines one time. I have a H2O keg that runs at 50 PSI (I like my fizzy water). You can see where this is going, I attached my line for fizzy water to my full keg of semi carbed IPA. What came out was a rush of nothing but sputtering foam. I swapped the mixed up lines and used the PRV to drop the pressure in the keg over a few hours until I could hear the gas kick in. Waited a day and repeated the process, in the end it all turned out fine. I also have throttles (flow control) on my faucets, dialing them down for a really slow pour until the system settles down is another way to avoid over foam.
Can't you just pull the PRV on either the D-System coupler or the corny lid to release the head pressure? Then you could shake the keg to release more gas from suspension and pull the PRV again. Do that a couple of times and then let it settle and it should be good
If there is enough headspace that can work (assuming gas-in is shut off), but if there isn't enough headspace and the beer is way over-carbed that can be more cumbersome. If the keg is partially emptied though the PRV is prolly the easier way.
I'm sure that would work so long as the beer in the keg doesn't foam up to the point that you are spraying foam out your valve. Ask me how I know that can happen :)
It would be even easier with sankey to ball lock adapter's, correct? Just remove the liquid qd and gas qd, hit the quick release and reattach a gas qd with a length of tubing to go straight into blowoff. Or even easier attach a spunding set to 5psi or something like that?
I have a stout on nitro mix gas but the beer absorbed CO2 before transfer to the serving keg. So the 70/30 mix is off which has a massive effect on the beer. The pour, surge, head size, mouthfeel etc. What would be the best way to fix this? It's in a corny keg.
