Cash wrote:So I've got a keg of Brown Ale that I would like to filter. Does the fact that its already carbonated make a difference?
No, I always carbonate my lagers during secondary/lagering in a keg and rack to a serving keg after that. You need to keep the destination keg under a fairly constant pressure during the filtering/racking process to prevent the beer from foaming up.
The cheapest method is opening the blow-off valve just a tiny bit until the beer starts to flow but being careful not to release to much CO2 since this will be lowering the pressure in the destination keg.
For this I suggest a device like this:
http://morebeer.com/product.html?product_id=16772
or this
http://pivo.northernbrewer.com/nbstore/ ... rm=bleeder
With the upper one you can set the pressure and forget about it. With the lower one you have to monitor the pressure and adjust the valve such that you keep the pressure during racking. The pressure is determined by the CO2 content and the temp of the beer.
Hook-up your CO2 regulator to the source keg and increase the pressure until the beer starts to flow.
Kai
