Originally Posted by aiptasia
It probably won't hurt it. I've let beers go that long in the primary with no ill effects. He probably wants it to go that long to help settle out. Where it would be detrimental would be in beers where fresh hops aroma and flavors are very important. I wouldn't let an IPA go that long but it won't hurt some beers to have a nice long fermentation. He should consider using lager techniques.
Ehh, except in this case its a Hefe and waiting that long as you said will clear the beer...aka not a Hefe anymore.
Wheat beers and IPA's are the ones that should be drank almost immediately, a Hefe i had laying around just got worse over time..all the nice clove and banana flavors started to fade and it just tasted like mildly flavored water after 6 months when i found a bottle lol.