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.
It’s not that cone filters won’t make a great cup of coffee — the OXO On 9-Cup still ranked fifth out of 10 in our taste test. But flat bottoms generally allow for the grounds to be more evenly extracted and increase the coffee’s flavor. (It’s no coincidence our other three recommendations have flat-bottom brew baskets). You may have to do a little more tweaking to get this coffee maker’s brew to the best it can be, and that’s the other reason we like the 12-cupper more. This smaller version doesn’t let you tinker with water temperature.
The built-in burr grinder is high quality, and you can easily adjust the grind size and amount with a dial on the front of the machine. You can choose to use either a single- or double-wall filter basket, and the grinder will automatically adjust to give you the right about of coffee grounds for your brew. Reviewers love that it comes with the grinder and praise its quality.
*SCAA Certified: A Specialty Coffee Association of America certification indicates the machine can heat water to a temperature between 195 and 205 degrees Fahrenheit and ensures that hot water will be in contact with coffee grounds for no less than four and no greater than eight minutes. It’s a solid confirmation of quality. But according to Joseph Rivera, a research coffee scientist at coffeechemistry.com, not every manufacturer chooses to submit their coffee makers for SCAA certification, and there are definitely great drip coffee makers out there without its stamp of approval. Six of the 10 coffee makers we tested are SCAA-certified — including all four of our top picks.
The illy name is most often associated with their coffee, but they also make capsule-style machines for convenient home brewing. This model takes less space than the similar Y3 model, but still has features that coffee lovers look for. It brews standard drip coffee, and it makes espresso with 19 bars of pressure. No matter what you’re brewing, you can choose your brew strength, water temperature, and cup size, for the perfect cup every time.
The Bunn GRBD Velocity Brew High Altitude Original The Bunn GRBD Velocity Brew High Altitude Original 10-Cup Home Brewer in Black is different than other coffee makers. Brewed at 200°F water travels quickly through the unique sprayhead creating the turbulence needed to wet the grounds evenly and extract perfect flavor. Kept at the optimal brewing temperature in an ... More + Product Details Close
The principle of a vacuum brewer was to heat water in a lower vessel until expansion forced the contents through a narrow tube into an upper vessel containing ground coffee. When the lower vessel was empty and sufficient brewing time had elapsed, the heat was removed and the resulting vacuum would draw the brewed coffee back through a strainer into the lower chamber, from which it could be decanted. The Bauhaus interpretation of this device can be seen in Gerhard Marcks' Sintrax coffee maker of 1925.