The metal mesh of the sieve is damaged with me and the rest of the screen also does not work particularly well finished. I suspect that the power is slipping out sooner or later from the jamming under the edge ... For such a process a maximum of 4 would have been acceptable. I'm still not sure if I'll return the screen because it is more effort at the end, as the thing is worth. Next time I'll just buy in the store around the corner a sieve; I see much in advance what I get.