Methodology
How we evaluate coffee gear
This is our headline promise: a method you can check. Everyone in this category says they tested twenty machines. We have not lab-tested any of them, and we say so — here is what we do instead.
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Machines we claim to have lab-tested
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Sponsored placements accepted
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Free products accepted for coverage
Those zeros are the point, not a gap. We would rather publish that we haven't tested something than pretend we have. What we bring instead is a consistent, reproducible method applied the same way to every product.
1. How we source the picks
We start from what people actually search for and what Amazon actually stocks — because a recommendation you cannot buy is useless. We build a longlist from the category (the well-known machines, the enthusiast favorites, the value options), confirm each one is currently sold and resolve it to a live Amazon listing, and then cut it down. Nothing gets a spot because a brand asked; brands cannot buy a spot, because we accept no sponsored placements.
2. The scoring rubric
Every product is scored out of 10 against a small set of criteria chosen for the category. For an espresso machine those are usually shot quality, steam power, build, ease of use and value. For a grinder: grind consistency, adjustment range, retention, build and value. For beans: flavor, freshness policy, versatility and value. The overall score is the mean of those metric scores, shown to one decimal place, and we publish the sub-scores on every card so you can see exactly what the number is made of.
The score is a judgment from documented research — published manufacturer specs, official spec sheets, manuals, and aggregated owner reports. It is not a measurement we took in a lab, because we do not have one. This is also why you will never see an aggregate star ratingfrom us in a page's structured data: we have no customer reviews to aggregate, and inventing one would be a lie.
3. What specs we compile, and why
For each category we compile the fields that actually decide the outcome, straight from the manufacturer. For espresso machines: boiler type (thermoblock, single or dual boiler), whether the temperature is digitally controlled (PID), portafilter size, heat-up time and wattage. For grinders: burr type and size, stepped versus stepless adjustment, retention, and whether it goes fine enough for espresso. For beans: roast level, blend versus single origin, and whether the bag carries a roast date rather than only a “best by.” We compute the comparisons buyers cannot easily assemble themselves — like whether a grinder is “enough grinder” for a given machine, or the real cost per cup of a pod brewer versus a French press.
4. How prices work
Every price on this site is pulled live from the Amazon Product API and stamped with the date it was fetched. If our data is more than 48 hours old, the number disappears and the button falls back to “Check price on Amazon” — we would rather show you no number than a stale one. We never type a price into the page by hand. Amazon's price at checkout is always the one that counts.
5. The “don't buy this if” rule
Every product we recommend carries a line telling you who it is notfor. It is the fastest way we know to prove we are on your side rather than the retailer's, and no competitor page we studied does it. Every roundup also names at least one pick to skip.
6. Updates and corrections
Roundups are reviewed at least quarterly and whenever a major model changes; guides twice a year. Every page shows a visible last-updated date. If we get something wrong and you tell us, we correct material errors within 48 hours and note the correction on the page. See our editorial policy for the full standards, and contact us to flag anything.