Our Vertuo pod was created using the 240ml pod size using the espresso barcode. This gives people the option of pouring a short espresso or pressing the button again for an additional pour to create a weaker coffee. We find the best result are filling the pod twice and using 2 espresso shots for milky coffee. Creating your perfect coffee will require a few tries as it also depends on how strong your ground coffee beans are, but once you have achieved the desired strength you can continue to use Pod Star this way for future coffees.