The machine heats water and pushes it through a puck. The grinder decides whether that puck can be repeated. Pairings on product pages are editorial. They are not lab matches.
If the machine does not grind
The Encore ESP is the stepped conical most people mean when they say “first espresso grinder.” Every burr figure on its page is unverified in this dataset. Read Baratza’s current sheet before you trust 40 mm or 40 steps.
A hand grinder keeps the cash outlay down and adds work. The beginner grinder score penalizes manual drive for that reason. It is not an insult to the burrs.
If you already outgrew stepped clicks
Stepless flat burrs are stored as an espresso tool: timed dosing, hopper, not single dose. Specs are unverified. Amazon listings for Eureka are often third-party sellers, which is why the sample Amazon price on that row is not the one to trust.
Single dose means you weigh each portion. The catalog does not invent a retention number just because the grinder is single dose. Burr sets also vary by seller, so 64 mm is unverified on purpose.
A machine that already has a grinder, such as the Barista Express, does not need a second espresso grinder. Pair it with a filter grinder if you also brew pour-over. The Fellow Ode Gen 2 is in the catalog for that, and it is not scored as an espresso grinder.