Maybe a good idea to work for a short stint in a commercial kitchen?
Not a snark.. it's quite eye opening to see (and actually use) how much food a piece of commercial kitchen equipment processeses in a day and then how much effort it takes to clean them.
An example of cleaning a commercial deep fryer: https://www.youtube.com/watch?v=oFR5CN_kuI0
One can also try googling for other more detailed versions showing all the efforts in digging out all the burnt sediments/sludge :)