One cup. The point is you can make 12 (or more) while you do other things for the 10 minutes it takes. That boiler comes up as over $100 minimum when I google

One cup. The point is you can make 12 (or more) while you do other things for the 10 minutes it takes. That boiler comes up as over $100 minimum when I google it. I think you missed the part about cost. You can get a 40-cup coffee maker for less than that and still save more time than your Aeropress.