First I give then a good strong wash with a good pressure sink, to get off all the wax and most of the oil off, then clean them just like you would clean any other dishes, but instead of using ur regular sponge that u usually use, use a paper towel instead, paper towel somehow absorbs the oil instead of smearing it around, and scrub them inside and out, with this soapy paper towel, and rinse, then let them air dry, if they still have oil grease on them, wipe them thoroughly again with the soapy paper towel, and rinse, air dry, Crystal clear
