One of the many issues with other coffee makers is that the brewing process is inconsistent, with temperature fluctuations that can potentially affect the acidity, aroma, and final flavor of your beverage. The OXO On Barista Brain Coffee Maker is fixed with an intelligent microprocessor that monitors ambient temperatures throughout the brewing process.
Tamp: To ensure the espresso is evenly packed, your machine comes with a tamp, which you’ll press into the basket against the grounds. This step is important: When you pull a shot, the water will go to the place of least resistance, avoiding densely packed areas. This denser espresso won’t be properly saturated, making it under-extracted and sour, while the looser espresso will be over-extracted and bitter.
The Breville machine was also the only semi-automatic model to produce a velvety, well-incorporated foam. The consistency with which it incorporated air made for a beautifully textured latte—and our coffee expert was even able to make some latte art with it (something that was impossible with the air bubbles from other models, including the Gaggia and all of the less expensive machines).

"My absolute love of the Delonghi Maginfica ESAM3300 is hard to describe. It has been a faithful crema steeped friend and morning ritual for at least 8 years, and the current unit I bought as a replacement last week (another ESAM3300) is a testament to why I give this well built Italian Stallion "super automatic" espresso dream machine a SOLID 5 star rating.
CR’s take: This unassuming, inexpensive Hamilton Beach coffee maker might be easy to miss, but it can brew a mean cup of joe at a fantastic price. In a basic black-plastic finish, it has the essentials—it’s programmable and offers auto-shutoff—and it offers solid brew performance in a decent time frame (10 minutes). Hamilton Beach machines even earned a Very Good rating for predicted reliability. At around $25, this simple model will get the job done.
Since semi-automatic espresso makers require you to dose the coffee yourself, grind and pack it, they give the brewer more control. You can tinker and master the art of making espresso. You can learn to pull the perfect shot. Still, fully automatic machines are a good option for someone who wants quality espresso at home, but wants to put in less effort (and skill). According to our expert from Students of Coffee—and our own online research—a semi-automatic machine is the best way to make espresso.
"A rare example of the meeting of form and function. This machine is both beautiful to look at and makes wonderful delicious espresso and cappuccino. I was hesitant to spend this much on a "coffee maker", but took into consideration what it costs to get a decent cappuccino from a cafe or Starbucks and finally gave in. Boy am I glad I did. All it takes to get me out of bed in the morning is the happy thought of pulling yet another delicious shot from this wonderful machine."
The impact of science and technological advances as a motif in post-war design was eventually felt in the manufacture and marketing of coffee and coffee-makers. Consumer guides emphasized the ability of the device to meet standards of temperature and brewing time, and the ratio of soluble elements between brew and grounds. The industrial chemist Peter Schlumbohm expressed the scientific motif most purely in his "Chemex" coffeemaker, which from its initial marketing in the early 1940s used the authority of science as a sales tool, describing the product as "the Chemist's way of making coffee", and discussing at length the quality of its product in the language of the laboratory: "the funnel of the CHEMEX creates ideal hydrostatic conditions for the unique... Chemex extraction." Schlumbohm's unique brewer, a single Pyrex vessel shaped to hold a proprietary filter cone, resembled nothing more than a piece of laboratory equipment, and surprisingly became popular for a time in the otherwise heavily automated, technology-obsessed 1950s household.
Running hard water through your coffee equipment can lead to mineral buildup and calcification on your heating elements. If you’re looking to get the most out of your commercial coffee maker , then it’s important to make sure it’s properly cleaned. Cleaning your coffee maker will not only prolong its life span, but it will also improve the taste of your coffee. You should be cleaning and deliming your machine at least once every six months, however if the water you use is extremely hard, you may need to clean it every month. Follow our video and step-by-step instructions to get your coffee maker back in top shape, and don't forget to set up a water filtration system for your coffee equipment to cut down on mineral buildup in the future. Step-by-Step Instructions for How to Clean a Coffee Maker 1. Unplug the coffee maker. 2. Wipe down the machine with a damp towel. After you're finished wiping down your machine, you should plug it back in to begin the deliming process. 3. Mix 10 oz. of lemon juice with 32 oz. of water. 4. Pour the mixture into the water reservoir. 5. Turn your coffee machine on as if you are brewing a pot of coffee. 6. Once your coffee machine has finished its brewing cycle, remove the machine's spray head. 7. Remove any residue that may be blocking the holes on the spray head. 8. Insert a deliming spring into the opening where the spray head was. In a sawing motion, move the deliming spring back and forth about 5-6 times. Run two or three brewing cycles with plain water in order to remove any traces of lemon water solution. 9. Wash the coffee filter with warm, soapy water.
If tinkering is what you’re most excited about, we recommend the Behmor Brazen Plus Customizable Temperature Control Brew System. This is a drip machine that takes its job seriously. It performed the very best in our out-of-the-box taste testing, but still gives you the opportunity to play around with different variables, from water temperature to pre-infusion times. At around $200, it’s on-par with the OXO 9-Cup price-wise, but is definitely not as nice to look at or use, with a tall, bulbous body, squat carafe, and an eight-button programmable interface that reminded us of a digital alarm clock.
These organizations consider how long it takes you to brew the coffee, the social impact of the coffee maker, as well as the roasting ability of the coffee maker. The best coffee maker will be BPA free and certified. An SCAA certified coffee maker, for example, will be able to deliver water at optimum temperatures throughout the whole brewing process, without compromising the integrity of the coffee at any point.​
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.
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