The actual size is one of the first considerations when looking for cafetera capsulas (coffee pods). A lot of pod coffee makers give you the possibility to adjust the spout according to your necessities, so they work with different manufacturers, but they also offer differently sized cups. This rule does not apply to every machine though. Families with more coffee drinkers or offices might not truly benefit from this idea, especially since it leads to plenty of waste. All in all, aside from the cup size, make sure that you consider the physical size of the pod too. It must be small enough to fit in the support.