Originally Posted by Hoppyending
Its the higher gravity beers.
Not necessaryly. I have had low gravity beers go crazy and blow off and high gravity beers just chug along. The biggest blow off I ever had was a stout that was only 1.042 OG. But of course I also had some big beers go crazy too.
Each fermentation is diffferent. Big beer do tend to blow off more often , but small ones can too.