scour off

scour something off (of) something

 and scour something off
to clean something off something else by scouring. (Of is usually retained before pronouns.) See if you can scour the rust off the cookie sheet. I will scour off the rust with steel wool.
See also: off, scour
References in periodicals archive ?
Scrape or scour off decaying food, which can attract disease, then scrub with a mild solution of bleach.
The fact you can microwave the soup in the pack means no bowls or saucepans are needed, a definite plus for anyone who has had to scour off soup welded to the bottom of saucepans left on the hob for a nanosecond too long.