The French press is a simple coffee maker designed by Attilio Calimani in 1929. French press is the name used in the US and Canada. The machine is also known as coffee plunger, coffee press, press pot, cafetière a piston in France or cafetière in the U.K. In Italy the press is known as a caffettiera a stantuffo. In New Zealand, Australia, and South Africa the apparatus is known as a coffee plunger, and coffee brewed in it as plunger coffee.
French press can also refer to the coffee brewing method. The French press coffee brewing method consists of immersing coarsely ground coffee in hot water, and steep for 2 to 5 minutes.
A new trend in the market is the introduction of the insulated French press. This improves the brewing process by slowing down the temperature dropping, very common with glass French Presses. Most commonly, the insulated French press is made of stainless steel with double walls.