If you are upgrading from pre-ground coffee or a pod machine, the order you buy in matters as much as what you buy. For most setups, the grinder comes first.
For espresso
- Grinder. Non-pressurized baskets depend on a grinder with fine, small steps. Without one, a machine's single-wall baskets are hard to use, and pressurized baskets hide the difference. See grinders.
- Machine. Choose by portafilter format (54 or 58 mm), milk needs, and space. See espresso machines.
- Scale. 0.1 g, small enough for the drip tray; see scale fit.
- Tamper, funnel and WDT tool. Match the tamper and funnel to your basket size; see compatibility.
The exception: if you'll only use pressurized baskets or pre-ground coffee, a grinder matters less. Machines like the Stilosa and Dedica Arte are built around that.
For filter coffee
- Grinder with a filter range; a hand grinder is the budget route.
- Scale with a timer.
- Brewer. Most drippers are inexpensive; see manual brewing.
- Kettle. A gooseneck matters most for pour-over; immersion brewers work with any kettle.
Buying an all-in-one?
The Barista Express and its siblings include the grinder, which settles the order for you, but you can't upgrade one part later. A compact machine plus a separate grinder takes about the same width; see compact espresso setups.