This article is about a traditional coffee preparation dalgona coffee. For the South Indian coffee drink, see Indian filter coffee.
Water seeps through the ground coffee, the paper filter, and is then collected in a container placed below a holder used for drip brewing. Brewed coffee is made by pouring hot water onto ground coffee beans, then allowing to brew. There are several methods for doing this, including using a filter, a percolator, and a French press. Paper coffee filters were invented in Germany by Melitta Bentz in 1908 and are commonly used for drip brew all over the world. Brewing with a paper filter produces clear, light-bodied coffee. Metal filters do not remove these components. It may be observed, especially when using a tall, narrow carafe, that the coffee at the bottom of the coffeepot is stronger than that at the top.
This is because less flavor is available for extraction from the coffee grounds as the brewing process progresses. There are several manual drip-brewing devices on the market, offering a little more control over brewing parameters than automatic machines, and which incorporate stopper valves and other innovations that offer greater control over steeping time and the proportion of coffee to water. A less familiar form of drip brewing is the reversible or “flip” pot commonly known as Napoletana. The Drip-O-lator is a patented coffee pot for making drip coffee patented in 1921 and in 1930 and manufactured in Massillon, Ohio, or Macon, Georgia, United States. Filter coffee is central to Japanese coffee culture and connoisseurship. In South India, filter coffee brewed at home is known as Kaapi, and is a part of local culture.