Pierce's design was later improved by U.S. appliance engineers Ivar Jepson, Ludvik Koci, and Eric Bylund of Sunbeam in the late 1930s. They altered the heating chamber and eliminated the recessed well which was hard to clean. They also made several improvements to the filtering mechanism. Their improved design of plated metals, styled by industrial designer Alfonso Iannelli, became the famous Sunbeam Coffeemaster line of automated vacuum coffee makers (Models C-20, C-30, C40, and C-50). The Coffeemaster vacuum brewer was sold in large numbers in the United States during the years immediately following World War I.
Carafe style. Heavy coffee drinkers should look for a model with a thermal carafe. These coffee machines can keep your coffee warm for hours without having to sit on a burner, which can scald the liquid. Glass pots are not insulated and must sit on a heated burner to keep the coffee warm, so they’re an ideal choice for those who need only one or two cups a day. Some coffee drinkers insist that a glass carafe results in a better-tasting cup of joe. 
The KitchenAid® Pour Over Coffee Brewer combines the flavor and control of the manual pour over process with one-touch convenience. The Pour Over Coffee Brewer precisely heats and pulses the flow of water, steeping in the same manner as the manual pour over process, allowing the grounds to 'bloom'. The result is bright, clean and full flavored coffee without diluting due to over-soaking.
Enjoy a cup of instant coffee with the Bodum Columbia Double Wall Stainless Steel French Press Coffee Maker. This coffee maker includes a French press & Bodum coffee scoop. It is available in multiple sizes allowing you to choose the one best suited to your preference. This coffee maker is made from premium quality stainless steel, nylon, silicone, and plastic, which ensures that it is sturdy and durable. This coffee maker is part of the Columbia collection, and sports a silver finish that is...
Help yourself to cafe-quality coffee every morning. Whether you're brewing coffee for two or making enough coffee for family and friends, the Hamilton Beach 12-Cup Programmable Coffee Maker is the perfect size and offers many features to fit your brewing needs. This full-size coffee maker looks great on the counter with a stainless steel design that fits right in with any kitchen.
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.
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.[1] 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.
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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