Something a little strange... I have a microfibre cloth that sits on one of the grinders for the wand cleaning. Each morning as part of the set up I rinse it under the hot tap to clean & wet it again for purpose. With the EM6910 I'd have to give it a thorough wash every 3 - 4 days because it would start to smell. With my EM7000 is has been over a week and it still doesn't smell, yet the daily rinse is still the same. All I can work out is it's the difference between the milk in one compared to the other. I have noticed that the 7000 wand has less milk on it after steaming, and it's a thin layer, where the 6910 had quite a thick layer that seemed also to need more of a wipe to clean the tip. What I can't really work out is why there'd be a difference - both lots of milk get heated to the same temp using the same thermometer, so you'd think it would be the same residue. Maybe the tip in the 7000 doesn't get as hot for some reason even though the milk does?