Grill plate with non-stick coating
after cleaning with baking soda and vinegar
You have probably pushed some swearings when cleaning a grill plate with non-stick coating (Teflon).
Washing by hand is difficult, it never gets it totally clean out of the dish washer and leaving it to soak in warm water with washing detergent is not helping either.
And of course, you can't scrub the damn thing because of the non-stick coating.
But with this trick, your grill plate will be like new.