How to clean the inside of a washing machine and keep it that way

Same two droppers worth of baby drops sprinkled on the Vanish powder in the drawer but with no mops and 50gms of Vanish and LG’s Tub clean cycle.

There is hardly any difference in terms of less foaming without the mops. I’d still recommend to use them with a machine that hasn’t been previously cleaned with an oxygen bleach cleaner.