Tsuhan Seikatsu Washing Machine Tub Cleaner Quick 20 3-Pack

This is by far the most time-saving washing machine cleaner that does not contain chlorine. No soaking or hot water is required because the oxygen-generating agent to remove mold is added in two separate steps. The large amount of oxygen bubbles generated each time peels off mold and prevents reattachment, as shown in the second product image.
The process is two steps:
1. Add the powdered detergent to the washing machine and run the wash cycle for 15 minutes.
2. After 15 minutes, add the liquid detergent and run for 5 minutes, then drain.
Finally, simply run a normal cycle at high water level to finish.
The detergent is made of soap ingredients only. No petroleum-based surfactants are used.

I no longer need this as I have switched to a drum-type washer-dryer. With spring approaching, how about using this for your washing machine cleaning?
3 sets remain out of the original 6 sets. Includes a net to scoop out any remaining mold and dirt.
Since it is not chlorine-based, it is safe to use.