Serving through a carbonation stone

Are there any disadvantages to leaving a diffuser stone (0.5micron) in the keg for serving? The one I had bought is attached to a replacement SS dip tube and permanently in the keg.

My option would be to transfer to a new keg after carbonation, but... extra cleaning/sani/time/effort and chance of O2/contam. In other words, if it's not a big factor, and the stone will still bubble gas up to the headspace for serving, I won't bother.

To take that further, after I get my carb to the desired volume using temp chart, wetting psi, atmospheric, and elevation, do I leave gas at that setting or lower it to regular chart pressure to just push out the beer at that CO2 volume?

Topic kegging carbonation serving homebrew

Category Mac

1
answered at

Serving using a submerged carbonation stone is less than ideal.

It will stir up sediment that's usually undisturbed on the bottom of the keg.

Also the sudden burst of cO2 will cause head foam in the keg. Cleaning that dried lacing from the keg won't be fun.

I've never seen one that attaches directly to the normal gas port. Ideally the stones are attached to a custom lid with its own port. So when ready to serve you change the lid or just attach cO2 to the standard gas port.

If your stone attaches to the normal gas port and is on a short tube so that it's indented for the keg to be inverted while carbonating. But isn't in the beer while upright, then it wount have any issues.

Second question: Your serving system should pour at the same pressure used to carbonate most beer styles so the cO2 volumes don't change while it's on tap. Line size and length are critical.

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