Graters are useful for any small grinding need, and are not only used for cheese. Citrus peel can easily be zested by pressing against the small holes of a cheese grater. Chocolate shavings are also easily made with the tool. Rotary graters can be used to grind small amounts of nuts or candies as well.
Cleaning a cheese grater should be done at once, because any remaining cheese may harden and stick to the holes. Wiping the unsharpened side of the grater with a soapy sponge or cloth will usually remove any remaining grated material.