Stove-top espresso makers are measured by cup size e.g. Bialetti Moka Express 3 Cup. However, this does not mean that this stove-top espresso maker will brew three full cups of espresso. Instead the '3 Cup' measurement refers to an Italian size portion of espresso: 1.3oz/40ml, approximately equivalent to half an espresso cup. So a '3 Cup' size stove-top espresso maker will make enough espresso to fill one and a half espresso cups.
