My husband swore that stuff was so oily that grease is all he literally tasted.  So would that be worse to see? Probably, but a lot more honest.  I used to have a deep fryer. I used it for cooking large batches of fries when friends would come over and we had a crowd to feed. I kept the oil in it fresh and changed and cleaned it regularly. It didn't matter. I could never get that damned smell out of my house. I finally had enough and threw the thing out the door and told my husband I would be baking our fries from now on until forever. Your comment made me think of that rancid (barf) smell and I can just picture one of those fat fucks from dinner kicking back with a pitcher full of used deep fryer grease, bits of burnt crap floating around in it and then pouring it into a glass, chugging it and saying "delicious".  I am going to go throw up now.