Following advice on homebarista.com. I decided to clean my Isomac Granmachinato with raw rice. It took ages to come clean, but then the grind was totally out. I adjusted it as fine as it would go, and coffee still ran through like a torrent. Took it to Rio Coffee (where I bought it) - the guy gave me a look like "WTF did you do that?". Anyway, he removed the grub screw, which prevents you adjusting the burrs too much and have them actually touch. Its made the grinder usable (until I can plonk down $130 for new burrs) but I just wanted to let others know that you should NOT use rice to clean it - despite what homebarista.com tells you!
Dave.
Dave.

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