In some forums I read years ago that you should just carry out the cleaning of Jura WITHOUT purification tablets, as these would only be expensive and the machine would still clean no better than to let go through the cleaning with water only. The cleaning tablets would be even more harmful because of the beautiful coffee-oil film would be removed and would thus wear out parts faster. Well, I tried it to clean only with water. The result was that the nozzle and other parts with the time dirty and more congested. So I've been using for a few years back, the cleaning tablets and their use can only recommend it to others. Annoying, however, the pricing policy of Jura, both for purification tablets as well as for descaling. In this respect I was quite happy, the pack size 25 St. to discover, you can order the costs but reduce a little.
