One, unless you split the output of the two spouts across two containers; but I believe it's intended just to brew in to one cup. The setting to adjust the amt of coffee that comes out can be used to adjust from 1-3, but the manual doesn't state how many oz/ml this equates to. However, the "My Brew" capability lets you set the 3 setting to whatever amount you choose so, in effect, it can brew as large a cup as you can fit under the spout! Not sure how it works w/ grinding/replenishing the beans during the brew, though.