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.
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| Input | Default |
|---|---|
| Bag price ($) | 18 |
| Bag size (g) | 340 |
| Dose (g) | 18 |
| Waste % | 8 |
| Machine price ($) | 700 |
| Cups per year | 365 |
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.