If you have been using your pump espresso machine for some time and you never performed a descale, it is possible that lime scale may have formed inside your machine, impacting on the ideal temperature of your coffee. We highly recommend you to descale your pump espresso in order to prevent the buildup of limescale. DeLonghi has developed a full range of natural descaler products, Ecodelcalk, perfectly designed for our coffee machines and a specific water softener filter to reduce lime scale deposits inside the coffee machine.