Symptoms of a weak boil

[larrybrewer]

I am going through a set of conditions for brewing, ruling out various factors and wanted to know what would be the symptoms (off flavors, flaws) from having too weak of a boil?

Leaving behind too much DMS is my first thought. Anything else going on here?

 

[mordantly]

the hot-break will be a little less effective with a wimpy boil. as long as its rolling, it is sufficient. i only kick it into a "volcano" to drive off a gollon of water in a hurry.

 

[wizardofza]

+1 on rolling boil. The only time I *really* crank up the heat is if for some reason my efficiency post-sparge is low. I try to make it up on the boil.