Kuhn Rikon Stay Clean Washing Up Universal Brush 1 "Disappointing" Mr Stannard 04 February 2019 The price of this brush fooled me into thinking it must be good. In fact it is disappointing. I find it frustrating to use. It is poor at getting food off dishes, and if something is only slightly stuck to crockery, wooden spoons or pans, I have to revert to using a standard sponge non-scratch scourer to clean them. I tried it on mugs and found that, despite the flexible end, it doesn't clean the bottom of the mug round the edges. A stiff-bristled conventional washing-up brush is better. Nor can you use it for cleaning sharp knives, a job that I normally use a brush for.