I think the point is that there is a difference between a cup of filter coffee and an espresso drink (Americano, latte, cappuccino etc) with the same volume. Th

I think the point is that there is a difference between a cup of filter coffee and an espresso drink (Americano, latte, cappuccino etc) with the same volume. The first one is well... coffee, the latter contains only a shot or two of espresso and the rest of the volume in the cup is hot water/milk.