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The company was founded in 1957 by George R. Bunn, who designed his own versions of paper coffee filters, that had a flat bottom and fluted sides and pour-over drip coffee brewers. The company introduced its first automatic drip-brew coffee maker in 1963. [2] The company introduced its first drip brewer for the home market in 1972.
In the early 1970s electrical drip coffee makers became more common, causing a decline in manual drip coffee preparation methods until the 2010s, and the near-extinction of coffee percolators. Among the early electrical drip coffee machines was a machine designed by two former Westinghouse engineers and sold under the brand Mr. Coffee in the ...
A stove-top, Italian style coffee maker A 2016-model electric coffeemaker. A coffeemaker, coffee maker or coffee machine is a cooking appliance used to brew coffee.While there are many different types of coffeemakers, the two most common brewing principles use gravity or pressure to move hot water through coffee grounds.
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Filter coffee being brewed. Coffee preparation is the making of liquid coffee using coffee beans.While the particular steps vary with the type of coffee and with the raw materials, the process includes four basic steps: raw coffee beans must be roasted, the roasted coffee beans must then be ground, and the ground coffee must then be mixed with hot or cold water (depending on the method of ...
As the coffee absorbs heat, the color shifts to yellow and then to increasingly darker shades of brown. During the later stages of roasting, oils appear on the surface of the bean. The roast will continue to darken until it is removed from the heat source. [21] Coffee also darkens as it ages, making color alone a poor roast determinant.
A vacuum coffee maker brews coffee using two chambers where vapor pressure and gravity produce coffee. This type of coffee maker is also known as vac pot, siphon or syphon coffee maker, and was invented by Loeff of Berlin in the 1830s. These devices have since been used for more than a century in many parts of the world. [1] Design and ...
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