Bunn-O-Matic came out with a different drip-brew machine. In this type of coffeemaker, the machine uses a holding tank or boiler pre-filled with water. When the machine is turned on, all of the water in the holding tank is brought to near boiling point (approximately 200–207 °F or 93–97 °C) using a thermostatically-controlled heating element. When water is poured into a top-mounted tray, it descends into a funnel and tube which delivers the cold water to the bottom of the boiler. The less-dense hot water in the boiler is displaced out of the tank and into a tube leading to the spray head, where it drips into a brew basket containing the ground coffee. The pourover, water displacement method of coffeemaking tends to produce brewed coffee at a much faster rate than standard drip designs. Its primary disadvantage is increased electricity consumption in order to preheat the water in the boiler. Additionally, the water displacement method is most efficient when used to brew coffee at the machine's maximum or near-maximum capacity, as typically found in restaurant or office usage. In 1963, Bunn introduced the first automatic coffee brewer, which connected to a waterline for an automatic water feed.
When you buy a machine with coffee credits you will receive a code with credits to buy coffee from curated roasters in the Spinn app. The credits will be uploaded in your account settings of the app. The credits allow for easy browsing and discovery of local and national coffee roasters. The credits will be used for automatically ordering when your Spinn machine is running low.
That said, it’s not as elegant to use as the OXO machines. (Nor is it as nice to look at. One tester described its tall, bulbous body and squat carafe as “UFO-like.”) Take its eight-button controls, for example, which you use to toggle among brew modes, scroll up and down within the menu, and engage a manual brewing feature. Programming it to start brewing at a certain time was about as intuitive as setting an alarm on a clock radio — easy enough, but more technical than sleek. OXO definitely feels like the future; Behmor is more, “If it ain’t broke, why fix it?”
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.
For many of us, the daily grind can't begin until we've had that first cup of piping hot coffee—so the right brewer is at the top of the list. The most basic coffee makers make at least a decent cup, but a little more money buys conveniences such as programmability, a thermal carafe to keep coffee hot longer, settings that let you adjust brew strength, and more.