overscrub

verb

Infinitive:  overscrub
3rd person:  overscrubs
Present:  overscrubbing
Gerund:  overscrubbing
Past:  overscrubbed
Perfect:  overscrubbed

To scrub too much;  to mechanically clean excessively.

Examples: 

Nonetheless, the pan should not be overscrubbed and re-polished.  Instead, we must give it a gradual run-up: ...  (Source: J∙ Okram - Bartonian Potato Pancakes  ●  Cooking Recipe.)