Kleckern is allowed! Experiment: Brussels waffles (some recipes beige lying) with excess dough. On both sides of what went out. But that is easily removed for handle and device made of smooth plastic. On the coated plates liable nothing! They look after 1hr. Baking time like freshly unpacked. After the device is cooled somewhat, and the lower part (including the space) may be cleaned without any problems.
I was concerned because, quite a big gap between plate set and bearing surface that covers the heating element. The concerns have evaporated. :) Only the ME has an impact on the baking time as shown below.
[___ What is not optimal ___]
The waffles sizzle quite a while for Belgian waffles for example requires the device whopping 2:10 minutes per charge (until the green light comes on). The short cable is of course handy when an electrical outlet is nearby. Otherwise If sandwiches I find okay, because other units require similar long.
It should be noted otherwise no negative criterion: Stainless Clean after cooling the device, otherwise streaks can be seen.