What is the general rule of thumb for how much rice hulls to use? Rice Hulls are cheap but at the same time I'd rather keep them to a minimum when I do use them. I have an Oatmeal stout recipe that uses 1.5# of oats. I tend to use about 0.5# of rice hulls in the mash and I've never had a problem. Cheap insurance.
I've made wheat beers with 50/50 wheat/2 row and I have used 1# of hulls in that scenario.