I've read online that removing the sleeve of the pannarello wand and just using the inner rubber as a wand can create better micro foam, I was excited to try as I couldn't get my EC685 wand to produce nice foam for latte art. I've read that you need to release the pressure (purge) first before removing the sleeve. So I did. It worked for 5 seconds (and I can see it works so much better than with the sleeve). However...5 seconds later, the rubber flew into my jug and milk splashed everywhere. Has anyone had similar issues? Is it just not possible to use the EC685 wand without the sleeve?
I have the exact same machine and the inner rubber wand is tightly attached. It doesn't come off even if I pull it firmly. If yours is falling off that easily it could be that either it is clogged (so the steam pressure is shooting it off), or it is lose (which you should be able to push it back in place) or it is defective (or missing a part).
Sometimes this part (inner rubber wand, Delonghi uses it not only in the EC680, but in many other models as well) has too tiny hole (output). That's why it deattaches. TheThe possible solution is to make a hole a bit larger using hot idle or a bradawl.
Easy fix is to just add a small cable tie to it, worked for me :)