Aleman said:
Sean_Mc said:
To seal a corny its recommended to get 20psi, to force carb it you'll need 60psi, and shake and shake and shake
And end up with over carbonated beer that gives you 3/4 a pint of froth. There is no need to go much above 30 psi for force carbing and a maximum of 60 seconds gentle rocking
:clap:
A process used by a lot of brewers when time is of the essence.
The process:
Rack finished beer to keg, (add gelatine fining to keg prior if required) fill to about 1 inch below the gas in tube.
Seal up keg and to remove as much air as possible give a squirt of gas then purge by operating the pressure release valve, repeat.
Attach gas QD to gas in post on the keg and set reg to 300Kpa
Tip keg over to 45° set stopwatch or timer and begin rocking.
Rock keg back and forth (you will hear the gas bubbling into the liquid).
After 50 seconds stop rocking and shut off the gas bottle valve.
Now continue rocking the keg while monitoring keg pressure on the regulator.
The pressure may appear to rise momentarily, then it will begin to fall.
Rock the keg back and forth until the pressure stabilises, this will occur at different pressures depending upon some variables - level of headspace in the keg and temperature of the beer.
Generally this will occur around 100Kpa (this does not mean that this is the carbonation pressure, it is the pressure in the keg ATM, equalisation is not complete)
Remove the gas QD and put the keg into the serving container/fridge.
After 24 hrs release pressure by opening the release valve (carefully/slowly) and attach gas at serving pressure.
The first pour or two will be a little grubby depending on how much yeast etc was in the beer.
If you find carbonation a bit light on - extend the time rocking under pressure or vice versa if there is too much carbonation for your liking.
This method can be a bit hit and miss, but at least the process is measurable and repeatable and works well enough when in a hurry. I have poured beer after resting the keg for only one hour when the beer has been crash chilled and is clear and cold prior to force carbonation. The process works best at low temp (I do it around 4°C). It is very much a personal process, each brewer having his own process, one that works for him and is repeatable given the particular set of variables (temp, shaking or rocking, pressure, fill level etc) that make up his process.
Happy force carbing,
Screwy