With a double boiler or heat exchanger system, you can brew and steam milk at the same time. This has an advantage over single boiler machines where you have to wait between brewing and steaming for the temperature to adjust.
A burr grinder works in such a way that you can get a consistent, uniform size of grind each time, which is one of the key aspects of getting great tasting espresso. On the other hand an inferior blade grinder often leaves you with an inconsistent grind.
These buttons can be programmed for different types of coffee such as an espresso, doppio or ristretto. This means once you have mastered a particular style of coffee, you can get it the same every time.
The espresso machine has an integrated grinder so that you don’t have to buy a separate one.
3% have it
12. Has a hot water outlet
A hot water outlet is useful as it can be used to heat cups, as well as making americanos, long blacks and teas.
84% have it
13. Has cup warmer
With a cup warmer you can heat the cups before pulling your espresso so that it doesn't go cold quickly, which affects the taste and quality. It also means that you don’t have to manually heat them using hot water.
94% have it
14. Has a display
The device has an electronic display to present information to the user.
9% have it
15. Has a removable water tank
The water tank is removable, making it easier to refill.
87% have it
16. Has a steam wand
It has a steam wand, which allows you to make steamed/frothed milk to create other drinks from an espresso base.
17. Has anti-burn steam wand
Steam wands are a fairly common source of burns when using espresso machines. An anti-burn steam wand has a lining inside that prevents the wand from getting scalding hot.
9% have it
18. Prevents overheating
It has an internal fuse/thermal sensors which prevents the machine from overheating.
3% have it
19. Has a shot clock
The time taken to pull an espresso shot is one of four key elements, and should be around 19-22 seconds. Once you have the grind, dose and tamp correct, you can use the shot clock to time the pull perfectly.