Roasted coffee beans from the species C. liberica
HaztechGuy
https://en.wikipedia.org/wiki/Coffea_liberica
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Freshly picked coffee beans from the species ‎C. canephora
FCRebelo
http://en.wikipedia.org/wiki/Coffea_canephora
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Coffea robusta before and during the processing stage.
DXLINH
An espresso machine brews coffee by forcing pressurized water near boiling point through a "puck" of ground coffee and a filter in order to produce a thick, concentrated coffee called espresso. An espresso machine may also have a steam wand which is used to steam and froth liquids (such as milk) for coffee drinks such as cappuccino and caffe latte.
MichalPL
https://en.wikipedia.org/wiki/Espresso_machine
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Coffee is brewed by placing coarsely ground coffee in the empty beaker and adding hot—between 93–96 °C (199–205 °F)—water, in proportions of about 30 g (1.1 oz) of coffee grounds to 500 ml (17 US fl oz) of water, more or less to taste. The brewing time is about two to four minutes. Once the grounds have brewed (or steeped), the mesh plunger or piston is pressed, to separate the grounds and hold them at the bottom of the beaker. The coffee should be transferred to the cup or stored in a container after brewing to prevent the coffee from becoming bitter due to prolonged contact with the grounds.
Shisma
https://en.wikipedia.org/wiki/French_press
Creative Commons Attribution 4.0 International
The pour over method involves pouring hot water through coffee grounds in a filter. The water drains through the coffee and filter into a carafe or mug. This process is unique from drip coffee in that the water is hand-poured from a kettle over the coffee grounds.
HungryHuy
https://www.perfectdailygrind.com/2019/01/everything-you-need-to-know-to-brew-great-filter-pour-over-drip-coffee/
Creative Commons Attribution 2.0 Generic
Drip coffee is perhaps the most common form of coffee brewing. Drip coffee machines use a filter filled with coffee grounds and a chamber of water. As the water boils, it vaporizes and "drips" over the beans, percolating into a carafe. Drip coffee is ideal for groups because they can produce many cups of coffee at once.
ParentingPatch
https://www.wholelattelove.com/blogs/articles/what-is-drip-coffee
A coffee percolator consists of a pot with a small chamber at the bottom which is placed close to the heat source (stove top or electric burner). A vertical tube leads from this chamber to the top of the percolator. Just below the upper end of this tube is a perforated chamber. The desired quantity of water is poured into the water chamber of the pot and the desired amount of a fairly coarse-ground coffee is placed in the top chamber. As the water boils, it fills the central tube and pours down over the coffee grounds. The process continues until the water has become the desired strength coffee.
Rote Fingur
https://en.wikipedia.org/wiki/Coffee_percolator
The AeroPress plunger uses pressure to push hot espresso into a mug. Adding water to the espresso creates a normal American coffee, and milk can be added to create lattes and other mixed coffee drinks.
jaymiek
https://aeropress.com/use-it-now/getting-started/
Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic
In siphon coffee pots, two chambers are used to mix water and coffee grounds to brew coffee. The first chamber is filled with water. When the lower chamber is heated, vapor pressure forces the water to rise into the upper chamber. Here the vapor is mixed with the coffee grounds and condenses back into liquid form. The water, now mixed with the grounds, is pulled back down into the lower chamber (thanks to gravity and a drop in pressure, the “vacuum” effect), through a filter which sits at the bottom of the upper chamber, and the bottom chamber in turn fills with brewed coffee.
Kenny Louie
https://www.thekitchn.com/what-is-siphon-coffee-and-how-is-it-made-216340