I am a fiber teacher and author. Find my book on scouring wool on Amazon, The Art of Washing Wool, Mohair and Alpaca. https://www.amazon.com/Camaj-Scouring-Washing-Mohair-Alpaca/dp/1079795707/ref=sr_1_1?dchild=1&keywords=mary+egbert&qid=1613778268&sr=8-1
Take my year-long Spinning & Fiber Workshop and other fiber prep courses. You might want to even get your scouring certification. https://welcome.camaj-school-of-fiber-arts.com/