so you shouldn’t notice any migration from the cherry to the rest of the cupcake. With the amount you used though, you may experience colored lather. Try a small test batch first and see what happens – if it colors lather, or stains your washcloth, then it may be time to make...
As for cleaning the tub. I suggest use the dispense to fill vinegar or bleach( which ever you chose) then choose a soak cycle. Maybe refer to your manual to see if it offers a clean washer cycle. There are washing machine cleaners that do wonders. The enzymes will clean as well as t...