The rinse cycle has two main functionalities:- To heat the internal circuit once you switch on the machine- To remove coffee powder deposits when you switch off the machineThanks to this function yourmachine will beready, cleanand heated tostartpreparinganexcellent coffee.Some of the latest generation Fully automatic espresso machines recognize themselves if you have recently switched off them. In this case, once you switch on the machine again, it doesn't perform the rinse cycle because the machine is already heated. This is the same when you switch off the machine without making a coffee.