About Espresso Guidebook
Espresso Guidebook — independent guides to espresso machines and home coffee equipment — reviews espresso machines, grinders, and the accessories around them, built from manufacturer specifications rather than marketing copy.
Who writes this site
Espresso Guidebook is written and maintained by the Espresso Guidebook Editorial Team — the name we use consistently across this site's bylines and structured data, rather than attributing reviews to an invented individual persona. The team is responsible for researching manufacturer documentation, writing editorial analysis, and maintaining the accuracy of every page. Our full editorial policy covers this in more detail, including our use of research and drafting tools.
What research we do
Every product page on this site starts with the manufacturer's own product pages, and where available, official manuals and support documentation, not our impression of a product from photos or marketing copy. We separate what the manufacturer states from our own analysis of what that means for a real buyer, and we mark anything we could not verify as "not specified by the manufacturer" instead of guessing. Our research methodology walks through this process step by step.
Our guides cover the technical concepts that actually decide a buying decision — boiler type, PID, pump pressure, grinder burrs, dose and yield — because we think buyers make better decisions when they understand what a spec sheet means, not just what number is on it.
What research we do not do
We do not claim to have hands-on tested every machine listed here. Where a review discusses "our analysis" or "our take," that means an editorial interpretation of documented specifications — not a first-person test result. We do not fabricate specifications, ratings, or reviews, we do not copy or paraphrase Amazon customer reviews, and we do not display, estimate, or track Amazon prices anywhere on this site (see our affiliate disclosure).
How we make money
Espresso Guidebook is a participant in the Amazon Associates Program. When you buy through a link on our site, we may earn a commission at no additional cost to you. We are not Amazon and we are not the seller; we point you to the official product page on Amazon to complete any purchase.
Commissions never change our editorial opinion. We do not accept payment to rank a product higher, and we do not offer any reward for clicking our links. Full detail is on our affiliate disclosure page.
How we choose what to cover
We prioritize established manufacturers with genuine, checkable product documentation, and we only add a product once we can verify its core specifications against a manufacturer source. See our full research methodology for the step-by-step process.
How to request a correction
If you believe a specification, a link, or anything else on this site is out of date or incorrect, tell us through our contact page with a link to the current manufacturer source where possible. Our corrections policy explains what happens next.