For use on Jura & Capresso Super Automatic coffee machines only. 9 tablets are enough to descale your machine 3 times. Read the review of Jura Descaling Tablets 9 Tablets here. Scale is the biggest enemy of all household appliances that involve the use of tap water. JURA has developed descaling tablets for coffee machines to extend the service life of your coffee machine by removing scale while being easy on your machine.