Job this solves
Calculate real cost per cup including beans, waste, and optional machine amortization.
Assumptions
Defaults are starting points, not recommendations. Outputs inherit your inputs.
Common questions
What counts as waste?
Puck, chaff, over-dosing, and the first shot you dump while dialing. Typical 5–12% for espresso.
How many years should I amortize the machine?
Use 3–5 realistic years. If you plan to upgrade sooner, lower the number.
