OK, tried the procedure described above by adding grease to the Crown.
Put in the fridge overnight. Removed the grease on top. A lot of particulate in the liquid so I strained twice through coffee filters.
Tasted like bacon grease, of all things, with alcohol added. Over whelmed the liquor. Left a very heavy film of grease on the tongue and roof of the mouth.
One taste, poured the rest out.