The gist: The Nespresso Pixie is an Amazon's Choice product and boasts a 4.5-star rating. It pumps espresso with 19 bars of pressure and has a 25-second heat-up time. It has two one-touch buttons (in case you want a single espresso or a slightly larger "Lungo" serving), a 0.7 liter water tank and an empty water tank alert that let's you know when you're running low on H2O. The machine also comes with a welcome kit that includes a range of capsules featuring various flavors.
This testing was designed to highlight the difference in how each machine extracted its coffee grounds. Remember, extraction is tied to water temperature, how long the grounds had to steep, and how evenly that water is distributed in the brew basket. (Depending on how the machine distributes the water and the shape of the basket, any particular ground may or may not receive the same amount of time in contact with water — thus any individual grind may be over-extracted, under-extracted, or just right.) Properly extracted grounds would have a balance of notes and aromas, from slight hints of acid to a pleasant amount of bitterness.
Once you start brewing, it makes a really, really good pot of coffee. Our taste test revealed the OXO On 12-Cup coffee was “dark and strong” and appealed to the more traditionalist coffee palates. The great flavor comes from the brewing process. The OXO machines have wide shower heads with multiple ports through which water streams, dispersing it evenly throughout the brew basket. Lots of other coffee makers spout water through just one hole, or through shower heads with a smaller radius, which can increase the chances of uneven extraction.
The gist: Okay, so although most of our list focuses on countertop espresso makers, if we're going by Amazon reviews, it'd be an injustice to ignore this Bialetti Stovertop Espresso Maker. As Amazon's best-selling stovetop espresso maker, this classy little thing is POP-U-LAR. As in 6,950 reviews (and counting) popular. Most impressively, those reviews give it an average of 4.3 stars, with 74% of them giving it a perfect 5-star rating. That's a hell of a lot of happy people. Now, disclaimer: we do have to mention straight away that the Bialetti doesn't *technically* make espresso, considering it's not able to build the amount of bars of pressure necessary to again, *technically* qualify it as espresso. However, Bialetti does give tips and guidelines for how to brew their "moka" coffee to your liking. (Moka is described as a mix between coffee and espresso.) Also, some reviewers (see below for example) claim they can't even tell the difference between the moka and a shot of espresso.
Our brew-performance tests measure the brew temperature and contact time (how long water stays within a sweet spot of 195° to 205° F for brewing). We measure concentration using a refractometer, a device that measures the amount of coffee dissolved in each brew. Our convenience tests look at how easy it is to set timers, fill the reservoir, clean the machine, and more. And for the first time, we’re incorporating predicted reliability and owner satisfaction ratings into the new Overall Score for each model. We determine these ratings for each drip coffee maker brand using survey data collected from thousands of CR members.