"American instructions"
I have used this once. It worked ok-ish. The problem is that the instructions say that for it to work efficiently it must go on the top rack of the dishwasher and must stand straight not tilted at an angle. I don't know what US dishwashers are like but my British one (Hotpoint) does not have a straight area anywhere on the top rack. Whether it would have worked better standing straight I just don't know.
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