I have a couple of 5L mini kegs with ball lock lids which I use for kegging and force carbonating. I usually brew 30L and put 19 in a standard corny keg and then fill the two mini kegs.
I can carbonate the corny perfectly using force carbonation but I can't carbonate and serve from the mini kegs without causing huge amounts of fobbing. I've got a decent flow control tap but even at the slowest setting I just pour a pint of foam.
For the corny kegs I set the gas to 30psi and rock and roll the keg for 5 minutes then serve under 13psi. With the mini kegs I've cut the time and pressure down to 1 minute of shaking at 20psi and serving at 8-10. It still pours a pint of foam.
I don't think it was quite as bad when I first got them but it has been very foamy for a long time. I did need to replace the dip tubes at one point as they went manky but I am sure the issue had started before then and I'm using the same ID tubing as it needs to push onto the base of the lid so wouldn't work with a different diameter tubing.
Any ideas.
I can carbonate the corny perfectly using force carbonation but I can't carbonate and serve from the mini kegs without causing huge amounts of fobbing. I've got a decent flow control tap but even at the slowest setting I just pour a pint of foam.
For the corny kegs I set the gas to 30psi and rock and roll the keg for 5 minutes then serve under 13psi. With the mini kegs I've cut the time and pressure down to 1 minute of shaking at 20psi and serving at 8-10. It still pours a pint of foam.
I don't think it was quite as bad when I first got them but it has been very foamy for a long time. I did need to replace the dip tubes at one point as they went manky but I am sure the issue had started before then and I'm using the same ID tubing as it needs to push onto the base of the lid so wouldn't work with a different diameter tubing.
Any ideas.
