I have a five sided cheese grater that i use all the time. But the finest grates on it which are super tiny are frickin impossible to clean. Im thinking of buying a new one but i will have the same problem. Ive used knives, forks, foil. Nothing works. Soaked it a few times, doesnt work much. Ofcourse sponges and towels just get grated when i try it that way. I clean the inside of it, but the outside is still clogged. Yuck! Weird question to some probly, but not to those who use these things a lot, im sure u can relate!