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Infusion Brewing
This involved submersing the ground coffee, usually enclosed in a linen bag, in hot water and letting it steep or "infuse" until the desired strength brew was achieved. -
The Napier Vacuum Machine
this process included heating water in a lower vessel until expansion forced the contents through a narrow tube into an upper vessel containing ground coffee. When the lower vessel was empty and sufficient brewing time had elapsed, the heat was removed and the resulting vacuum would draw the brewed coffee back through a strainer into the lower chamber.
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French Press
This coffee maker requires coffee of a coarser grind than does a drip brew coffee filter, as finer grounds will seep through the press filter and into the coffee. Coffee is brewed by placing the coffee and water together, stirring it and leaving to brew for a few minutes, then pressing the plunger to trap the coffee grounds at the bottom of the beaker. -
Moka Pot
The moka pot is a stove-top coffee maker which produces coffee by passing hot water pressurized by steam through ground coffee source -
Electric drip coffeemakers
This works by admitting water from a cold water reservoir into a flexible hose in the base of the reservoir leading directly to a thin metal tube or heating chamber. -
Pourover
This machine uses a holding tank filled with water. When the machine is turned on, the water is heated to a boiling point using a thermostatically-controlled heating element. When the water is hot, it is poured into a top-mounted tray when it descends into a funnel and tube which delivers the cold water to the bottom of the boiler. source -
Keurig
One small pin punctures the foil lid, thus releasing hot water into the K-Cup. Another small pin punctures the bottom plastic layer, thus allowing the just-brewed coffee to pour straight into the coffee mug source
