Hi, Each trapper had their own secret recipe that was closely guarded and thought to be the best.Sounds familiar today.But historically they used alcohol to both preserve and prevent the concoction from freezing,castors,anis oil,peppermint oil,cloves ,nutmeg and cinnamon.I'd put the works in a seperate small blender container [if you want to remain married]and grind it into a thick paste.This can be put in smaller containers for future use and the alcohol will keep it from souring.Go easy on the spices.Find a scent mound where your trapping beaver and introduce your scent on a small stick with a drowning set leg trap out front and you should be in buisness......Good luck....Harold[beavers regularly freshen these scent posts]