Raw milk for cheese isn't quite as big of deal as enthusiasts make it out to be. It's more the homogenization process that destroys milk for cheese than pasteurization. I've had alot of success mixing pasteurized skim milk and pasteurized heavy Cream to the ratio I want to make various cheeses. Using Homogenized milk though nearly always failed or gave extremely low yields for me though.

Normal everyday disk soap is is safe to use on cast iron, but modern products that are marked "degreaser", "ultra", "platinum" etc will often have chemicals that will break down Polymerized oils. Great for keeping stainless steel shiny, very hard on your cast iron's seasoning though.