I am baffled by this but its not funny. I have been using uberlather for a while now. Either TOBS cream with SRD unscented glycerin soap or AOS unscented cream with Stirling tallow based soaps. One of these combinations is causing a white substance to build up on the tips of my badger knots. It eventually builds to the point it starts to clump the bristles together.

I am conscientious about rinsing by brushes in hot water when done shaving and hanging to dry with a 4 brush rotation. I really worked hard on the worst of them yesterday. I tried some soap, then I tried shampoo. Finally I was able to remove 90% or so of the build up by soaking the brush in 91% Isopropyl for about an hour and the combing the ends of the bristles. The alcohol seemed to be a solvent for the goop but its still not all gone.

Anyone else had this happen to them?