On Mon, 20 Feb 2012 20:32:58 +0000, Frank Erskine wrote:

What's the best way to clear them? They're too small for a pin.

pressure washer?

Isn't that what an expresso machine already is? All be it pressure
from boiling water rather than a pump...

Caustic soda, but make sure you clean it properly afterwards.

Careful those bits look aluminium, at least on the machines I've
vaugley looked at.


--
Cheers
Dave.