Adding Corn Sugar to an Imperial IPA?

[nberna19]

I'm going to brew Jamil's Hop Hammer Imperial IPA (his Pliny clone) this weekend and have never added corn sugar to a recipe before to help it attenuate fully. It calls for 1.5 lbs corn sugar but does not state when it should be added. I've read it's to be added at the beginning, middle, or end of the boil or even in the primary. So what's the proper procedure and general consensus out there??

 

[avidhomebrewer]

I'd add it with about 15 minutes left in the boil.

 

[Hammy71]

yep.