The Son of a Barista machine is designed to give you a proper espresso shot as if you were receiving it in a café in Italy. To increase the brewed cup size please follow this steps: 1) Put a pod in the pod slot 2) Push any of the 2 buttons to turn the machine on 3) Push the second button and hold it until you reach your desired amount. Once the above steps are completed, the machine will memorize the setting for the button used. The small circle will allow for brewing up to 25 seconds and the larger circle will let you brew up to 55 seconds.