Should parboiled rice be washed or rinsed before cooking? If yes, on average how many times it should be washed. Should it be rinsed in water for more than 10 minutes?
Par boiled should not be rinsed, it is ready to be cooked as-is.
It was already rinsed and cleaned and, erm, par boiled.
If unsure, check the instruction on the package.
All rice should be washed and rinsed unless you are using it to make Risotto.