mildew smell on sharpening stones

Joined Jun 11, 2013
i have two wet stones i use on a steady basis, about once a week (1200 & 6000 grit)

i soak for about 10 to 15 mins then sharpen and let air dry

they get stored in dry towels in a dry, dark area

the stones have started smelling like mildew and i don't know how to get rid of it

what can be used to clean a stone? can i still get the smell out? and should i be using it to sharpen a knife?
Joined Oct 10, 2005
Scrub them with a nail brush and bleach water. Next time you use them, dont let them dry in dark enclosed spaces.
Joined Jul 28, 2001
Sometimes the stones we have on the boat do this if we forget and leave them in a cooler or plastic.After a light bleach solution scrub like Foodpump says  the best way to get rid of the smell is with a light vinegar solution. If you let them sun bathe dry they will be as good as new.
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