The tall tower is fixed on a rectangular base, with a water tank that looks something akin to a trapezoid. The hard plastic funnel allows your favorite paper filters to fit inside of it. It is recommended that you use type 4 paper filters, however. You also have the option to use permanent gold filters if you want to move away from reoccurring costs.
The next is the machine’s auto-pause. If you remove the carafe before your full pot is done brewing, the flow will stop until the carafe goes back in. It’s not a perfect system. There are a few inevitable drips that add an extra step to clean-up, and if the water is held up in the brew basket for too long, it increases the chance of over-extraction. But if you want a great first cup to sip on while the rest of your pot is brewing, you’ll get it in a much more satisfying time frame.
Other coffee brewing devices became popular throughout the nineteenth century, including various machines using the vacuum principle. The Napier Vacuum Machine, invented in 1840, was an early example of this type. While generally too complex for everyday use, vacuum devices were prized for producing a clear brew, and were popular up until the middle of the twentieth century.
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.