A refinement of the piston machine is the pump-driven machine, which was introduced in the Faema E61 in 1961, and has become the most popular design in commercial espresso bars. Instead of using manual force, a motor-driven pump provides the force necessary for espresso brewing. Espresso machines are made to accept water directly from a cold water line supply, common in commercial installations, or from a separate tank that must be filled with water by hand. The latter is more common with lower-volume commercial installations and domestic espresso machines. Due to the required high pumping pressure and precision flow control needed, the particular type of electric pumps typically used are known as solenoid-piston pumps. These pumps are classified as a positive displacement type (general category) of pump.
When you buy a machine with coffee credits you will receive a code with credits to buy coffee from curated roasters in the Spinn app. The credits will be uploaded in your account settings of the app. The credits allow for easy browsing and discovery of local and national coffee roasters. The credits will be used for automatically ordering when your Spinn machine is running low.
"I've wanted an espresso machine for a while now but just don't have the room for it. I started researching the Nespresso line and wasn't sure how I'd like it at first. I am not usually a fan of pod style coffee machines and was worried about how well this would perform. I got the Pixie model because I don't have a big kitchen and this thing takes up barely any space on my counter. The water heats up quickly so in less than a minute you can have a cup of espresso. As other people have mentioned, it is kind of loud but it is only for a few seconds and doesn't seem to disturb anyone else in my house. The few seconds of noise is worth it for me to have a delicious latte a few minutes later. There is a little box that collects the pods (up to 10 I think) for easy disposal. I also feel like the Nespresso pods have a much better flavor that other pod coffee. If you want a quick espresso and don't have a lot of space for a machine then I highly recommend the Pixie. I am very happy with it and use it daily."
“I like the Technivorm Moccamaster because, from a scientific standpoint, it creates the proper water temperature (and temperature consistency) for good extraction of flavor from the beans. That’s the problem with most cheap automatics — they’re inconsistent about temperature. It also has a shower-head design for good water dispersion and saturation of the grounds. It consistently tastes almost (almost, I stress) as good as a manual drip.” — Andrew Chou, engineer, General Motors
We tested 12 models by making shots of espresso and lattes on each machine. We enlisted the help of an expert from Students of Coffee, a group of coffee educators and roasters at New York University, to judge for quality. The majority of the models we tested were semi-automatic, meaning brewers still have to grind the coffee and pack it in the portafilter (the little filter cup with a wand that you place in the front of the machine). Semi-automatic espresso machines heat the water for you, and then pump it through the grounds at varying levels of pressure, depending on the machine. The semi-automatic models we tester were: