“This product consists of three parts: water tank and prepared coffee . And coffee powder. This is how it works . The first time you use it, you have to separate the components . And wash well . Then pour two cups of cold water into the bottom of the tank . And in the middle of it, pour the coffee powder. Then connect all three components together . And place on a low flame. After a while, the ready-made coffee enters the upper tank .And after it’s done, the coffee will be ready to drink. The safety valve on the black Italian coffee maker is to prevent any problems due to the closing of the inlet to the upper tank.