The cleaning effect through the granulate is good. However, one needs a lot more of the cleaner, as shown, so that the delivered quantity is insufficient for number of specified cleaning. For that, I give you a star deduction. The manufacturer indicates that the granulate is only suitable for cleaning of coffee grinders, but I have nevertheless used to clean the grinder in my fully automatic. This should be done only when the coffee maker after the grinding, so it can not be interrupted before the addition of water. In addition, you should make sure that the inner workings of the machine is dry, otherwise "gelatinized" the powder.
