I bought the Tefal BL871D40 PERFECTMIX PLUS Blender 8 months ago and initially loved it. But after only 8 months it is no longer useable because the design means the black plastic casing attached to the jug does not screw off, meaning that it cannot be cleaned adequately. As a result, dirt has accumulated and this contaminates the contents. When I told TEFAL about this they told me to buy a new jug. This is an expensive product which I have looked after carefully, and I would expect this to last more than 8 months! TERRIBLE DESIGN - DO NOT BUY