Because the coffee grounds remain in direct contact with the brewing water and the grounds are filtered from the water via a mesh instead of a paper filter, coffee brewed with the cafetiere captures more of the coffee's flavour and essential oils, which would become trapped in a traditional drip brew machine's paper filters. As with drip-brewed coffee, cafetiere coffee can be brewed to any strength by adjusting the amount of ground coffee which is brewed. If the used grounds remain in the drink after brewing, French pressed coffee left to stand can become "bitter", though this is an effect that many users of cafetiere consider beneficial. For a 1⁄2-litre (0.11 imp gal; 0.13 US gal) cafetiere, the contents are considered spoiled, by some reports, after around 20 minutes. Other approaches consider a brew period that may extend to hours as a method of superior production.
It scored the highest in our out-of-the-box taste test, brewing coffee our tasters described as “light” with subtle notes of blueberry, citrus, cherry, tobacco, and hazelnut. The machine simply brews great coffee, and it takes its job seriously. If you’re interested in playing around with the flavor and extraction of your roast, the Behmor Brazen gives you more access to more variables. You can adjust water temperature, play with pre-infusion times (15 seconds to four minutes) — it even has you enter your altitude to better determine water’s boiling point, and calibrate its internal thermometer during setup.
On August 27, 1930, Inez H. Pierce of Chicago, Illinois filed patent for the first vacuum coffee maker that truly automated the vacuum brewing process, while eliminating the need for a stove top burner or liquid fuels. An electrically heated stove was incorporated into the design of the vacuum brewer. Water was heated in a recessed well, which reduced wait times and forced the hottest water into the reaction chamber. Once the process was complete, a thermostat using bi-metallic expansion principles shut off heat to the unit at the appropriate time. Pierce's invention was the first truly "automatic" vacuum coffee brewer, and was later incorporated in the Farberware Coffee Robot.
It’s obvious, but easy to forget: If you don’t clean out your coffee machine’s carafe after each use with soap and water, you’ll always end up tasting a little bit of yesterday’s now-bitter brew. Thermal carafes need to be hand-washed, but all the plastic components of our top picks — brew baskets, lids, etc. — are dishwasher-safe if you keep them on the top rack.
If you’re shopping for coffee at the grocery store, “check the roast date, rather than the ‘best by’ date,” says Awan. With mass market roasters, the “best by” date can obfuscate the window in which coffee beans are at their best: about 4 days after roasting, when some, but not all, of the carbon dioxide has escaped from the beans. (Too much carbon dioxide captured within beans tends to create uneven extraction, as the gas escapes — this is what pre-infusing tries to counter. Conversely, too little carbon dioxide in the bean can lead to a loss of flavor.)
Only two optional settings are available: You can control the heating element under the carafe and turn down the temperature if desired. Other than that, the Moccamaster doesn't have—and doesn't need—anything else. Technivorm boasts that its heating element can get water between 196ºF and 205ºF, which specialists say is the ideal temperature for brewing coffee.
That said, there is a true magic to having espresso at home, making yourself a cappuccino in your pajamas, and avoiding awkwardly waiting around the end of a bar with a cluster of strangers, all desperate to grab the first latte that hits the counter. Espresso is hard, but that doesn't mean it's impossible—especially if you're easy to please, ready to practice, and up for a good culinary challenge. There are lots of resources available online for learning how to make good espresso: Look up videos on YouTube, read articles and DIY books, and don't be too shy to ask your favorite barista for pointers—many of us love getting geeky on the technical stuff with our favorite customers.