Granulator Cleaning

Which type of gmp compliant brush/spatula should use to scrub powder in wet granulator at end of granulation?
Nylon brush may shread fibers any other option…?

im not asking for SCP but removing the powder stuck in choper blades and impeler blades during granulation at the time of discharging th product?

Spatula can be used

with spatula its difficult to clean within blades and time consuming.
Any gmp compliant or food grade fibers brush available?