I cut the skin off and as much soft material without putting to much work into it , then i just put it boilng water with 10 mule team ,remove about once an hour and scrape anything loose off with a spoon . once its cleaned off ,i finish off with a soft bristle brush and some spray bottle oxy clean. then a couple days to let the peroxide sit , finally wash with oxyclean and you're done. Techniques seem to vary from person to person so you have a big window to not screw it up ,just be careful when boling that you dont lose the sinus bones or teeth.