It works surprisingly well, and is one of the easiest and most effective ways to clean a hide. Treat it as you would a load of laundry. Bloody, messy hides come out perfectly clean, and I think it makes them look better once they dry because the detergent cleans out all of the dirt and grime in the fur. This trick works well for cleaning beaver and other greasy hides after fleshing. It doesn't really matter what kind of detergent you use, and about one cup is enough to get the job done.