i'm making a mocha oatmeal stout and now that i'm going to keg it i just realized that i never added my lactose in during my initial boil.so what should i do now???? can i just boil up a some water and disolve it there or should i just forget about it all togethrer??? i have 2 other batches to keg first so any answers fairly quickly would be greatly apreciated!!!!