Are you referring to magnesium silicate type powders?
Ecolab makes a great cleaner powder, however the clostest restaurant supply store is 40 miles away. Which often put me on the spot to come up with a different solution. Im a bit of a clean freak in my kitchen
I don't know the chemical composition. You could try other more easily available cleaners like those found at Home Depot or Lowes'. Regular cleaning makes it easier of course although the bottom of the fryer is always hard to get to. I just saw a video on placing stove grates in plastic bags with ammonia and leaving them overnight. I suppose you could try that and seal the top of the fryer but that would mean cleaning the fryer first thing the next day. Or find a couple of other reasons to drive the forty miles and make a day of it.
alrighty thanks for the input everyone, im going to boil out with water only and drain and fill with white vinegar and let sit overnight, brush it down well, drain that out and boil once more with water, and rinse out. I think this may work. Im kind of a restaurant nerd, i like to know all the ways to do anything [emoji]129299[/emoji][emoji]129297[/emoji]