The Senseo Descaler is for the pure citric acid, and these can be done, food clean, of course, earn a fraction of the price in almost any supermarket or drugstore. In the 500 ml bottle of citric acid, which I bought for less than two euros, a Enkalkungsanweisung for pad machines was to things labeled also kindly printed - the decalcification of my Senseo machine worked so extremely simple, completely relaxed and without much intervention from me. The bottle provides enough content for dozens of applications, so I did not know the best will, which is why I need the official Senseo product that costs many times over.
In this respect: an official Senseo descaler needs in my opinion no man - this product is good certainly for descaling a Senseo, one can but replace entirely simple with a fraction of the price and product readily available.