Heats water on demand (like a tankless water heater). It’s fast and found in cheaper machines, but can be less temperature-consistent. 3. Key Technical Features
Are you leaning more toward (automatic) or would you prefer to learn the craft (semi-automatic)?
One boiler for both tasks. You’ll have to wait a minute or two between brewing coffee and steaming milk.
Most home machines have a tank. Make sure it's easy to remove and refill.
Never forget the grinder . An expensive espresso machine paired with a cheap grinder will produce poor coffee. If you have a $1,000 budget, it is often better to spend $600 on the machine and $400 on a dedicated burr grinder.
This determines how long the machine takes to warm up and if you can steam milk and brew coffee at the same time.
An internal computer that keeps water temperature precise. Even a 2-degree variance can change the taste of your espresso.
The gold standard. Separate boilers for brewing and steaming for maximum temperature stability and speed.