The Philips Senseo original is the most famous Senseo model. The Senseo original has a water tank of 0.7 liters. You can make about 4 cups of coffee in a row. Do you have a large household? The Senseo original XL might be something for you. Thanks to the larger 1.2-liter water tank, you can make about 7 cups of coffee in a row. In addition, the XL models have the Intensity select option, which allows you to make stronger coffee.