I find that hop aroma and flavor tend to dissipate quickly at room temperatures (70 F). After a few weeks, the light tangerine aroma from my pale ale dulls. This poses a problem for bottle-conditioning it seems. We have to let the beer sit for several weeks at room temps in order to develop carbonation, but during that time the beer is also aging. Has anyone else noticed this or found some way to combat it. If I can't find a way around it, I might just start kegging.