Start with cost per drink, not only the machine
A low purchase price can hide a more expensive coffee format, while a costly machine may be spread across thousands of drinks. Multiply the coffee or capsule cost by the number of drinks you genuinely make each day, then add the equipment and known care costs across the same ownership period.
Capsules are simple to price but vary widely
Divide the price of the pack you would actually buy by its capsule count. System, drink size, subscription and promotion can all change the result. Avoid using an unusually cheap promotional pack as a permanent assumption.
Beans depend on dose as well as bag price
A 1kg bag does not produce a fixed number of drinks. Divide 1,000g by your dose, then divide the bag price by that drink count. An 18g double espresso uses more coffee than a smaller automatic-machine recipe, so compare the drinks you intend to make rather than forcing unlike recipes to match.
Manual espresso usually needs a grinder
A separate espresso-capable grinder belongs in the starting setup cost unless one is built into the machine. Scales, tampers and milk jugs may also matter, but should be added only when you would genuinely buy them rather than treated as compulsory for every household.
Filters and cleaning products are model-specific
Some machines have optional filters; others recommend replacements on a timed or water-volume schedule. Cleaning tablets, descaler and milk-system products also vary by machine. Use the manual for the exact model and keep unknown cadence out of the headline instead of pretending the cost is zero.
Milk can outweigh small coffee savings
A daily milk drink adds the cost of dairy or plant milk and can create waste when opened cartons are not finished. Because household milk choices vary sharply, the site keeps this outside the shared headline calculation and encourages buyers to add their own normal spend.
Electricity needs measured use, not wattage
A 1,450W label is a maximum power figure, not annual consumption. Warm-up time, idle behaviour, auto-off settings and drinks per session all affect energy use. Until comparable measured cycles exist, multiplying wattage by an arbitrary number of hours creates false precision.
Keep repairs as a contingency
Repair cost depends on failure, age, parts availability and local labour. A sensible budget can include a personal contingency, but a product comparison should not invent a predictable annual repair figure without reliability evidence.
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