"To remove any grit" means to get rid of any dirt, sand, or tiny particles that may be present.
Sentences with «to remove any grit»
It is a natural face cleansing balm (read: no parabens, phthalates, synthetic fragrances, PEGS, SLS or secrets) that hydrates your skin while removing grit from the day. (rockpaperglam.com)
Rinse them thoroughly to remove any grit between the layers. (thefirstmess.com)
I like to chop my leeks and then wash them which works well for removing the grit. (101cookbooks.com)