I just brewed my second batch of steam beer, but this time I boiled for only 30. I want to see if there's much of a difference. I doubled the hops at 30 and according to by brew software it is the about the same IBUs as my first batch which I'm currently drinking as I type this.
I used 1oz of Galena at 30, approx 11% AA ... from what I recall it is a very clean bittering hop, and I used cascade at 15 and flameout. From what I've read if you get a strong boil going, DMS shouldn't be a problem ... I know there are more reasons for a longer boil but i figured i'd give it a shot.
I don't see a 30 minute boil being much of an option for hoppy beers such as IPA's because you'd need to use pile of hops, but for low IBU beers, figured why not