Espresso Machine
MDPublished
The espresso machine controls pressure, temperature, and water delivery, but repeatable shots still depend on grinder quality and maintenance.
Role
The machine supplies pressure, temperature, and water delivery. A stable machine makes dial-in easier because recipe changes are less likely to be masked by temperature swing or uneven flow.
What matters
Temperature stability, pump behavior, basket fit, and clean water paths matter more than cosmetic features. A capable grinder still matters at least as much as the machine.
Maintenance
Backflush where appropriate and keep baskets clean.