Hey All, I have tried using a full sized Cooper's/Munton's 5/6 gallon brew cans in Mr. Beer LBK on several occasions.What I found out was that the lighter styles,ie. Draught,Cerveza,and Munton's Lite Lager work pretty well as a 2.5 gallon batch.Not too hoppy or sweet.But the Coopers Dark Ale,Stout,and the Muntons Best Bitters are WAYYY to hoppy without adding some x-tra malt,and maybe even some extra dextrose. I like Malt-up-front brews,and the later ones I mentioned, I drank,but they were not really enjoyable. I'm going to experiment with adding some extra DME and dextrose in different amounts to find the sweet spot while using these big cans.Last year,Brew Demon had some past fresh dated 6 gallon brew cans that I purchased for 9 bucks each.They were alittle darker,but I got a case each of Pilsner,IPA,and Witbier,and they were all three brewed as 2.5 gallon batches,with good sucess.