I’ve used TSP to clean various really dirty outdoor items, mostly decks and house siding. It’s pretty nasty stuff. It sounds like a simple solution, though. Will TSP damage china, delicate glass, Teflon or other types of dish/cookware? Will it etch glass?
No it won’t hurt your dishes. Just don’t use too much. Use adult common sense when handling. It is the ingredient they took out of the old detergents. You used it all these years and never knew it.
Its Tri Sodium Phosphate. Has been in laundry and auto dishwashing soaps since Cesar was a Private in the Roman Legions.