It's a total loss if OP doesn't try, but op only loses IPA if they do. just submerge the whole thing in a tub amd let it soak/ softly scrub. As long as they dry it realy well, it shoudn't hurt anything (might take off the white labels though). I don't know how much these cost, so maybe it's not even worth the trouble. Screwing it to the door like it is, is just going to attract ants though.