Every Nespresso model comes with default settings. Initially, the new machine would brew coffee that would fill a certain cup size. This means that if your cup is much larger than the preset cup size, your cup would only be filled partially. If you'd like to make larger quantities of coffee, you'll need to reprogram the cup size following these steps: Step 1: Fill the water tank and insert the capsule. Step 2: Close the lever and turn on the machine. Step 3: Place your cup under the outlet. Step 4: Press the Lungo or Espresso button until you get your desired quantity. After this, you'd have successfully reprogrammed your Nespresso's cup size, and the machine should begin to make full cups.