In reply to gavjwp:
Sell the coffee as civet poo. I assume it comes out smelling like a pole cat. Just keep your shoes dry and aired really.....
I found buying a different shoe worked, also buy good quality cotton socks for normal use & be diligent with the daily personal hygiene. If your feet don't stink when they go in.... helps the problem no end.
Think that covers the 3 possible causes of stinking shoe.
Besides a little preach above, has anyone ever managed to reverse a pair of rock boots from rotten to socially acceptable? I have a thought that once they have gone to the dark side, that's them for life.