I use mine for beer and wine....the beer will retain it's carbonation indefintely. It's really no different than a counter pressure filler, all the counter pressure device does is prevent excess foaming by equalizing pressure....with the Beergun, you transfer using a lower pressure, about 5psi, this inhibits foaming.
Something is always fermenting
...."It's Bahl Hornin'"Primary: Brite Tank/Lagering:
Cider, German Pils, Belgian Tripel, Bedeviled (Bel. Golden Strong), AHA Summer Ale, Sonoma County Organic Cider, Maibock Bock, Ommegang Abbey Ale CloneBottled:
Contentment (Trappist), Derangement (Belgian Dark Strong), Kranky (Kolsch v1.1), Wise One (Wit)On Deck: My Site: www.restlesscellars.com