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Coffee percolator

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**1. Brewing Process:**
Coffee percolator consists of a pot with a bottom chamber and a vertical tube
Water is poured into the pot, below the filter basket
– Boiling water creates steam bubbles that push hot water up the tube
– Hot water flows over coffee grounds, brewing the coffee

**2. Inventor and Development:**
– Invented in 1819 by Joseph-Henry-Marie Laurens
– First US patent by James Nason in 1865
– Modern US stove-top percolator patented by Hanson Goodrich in 1889
– Electric percolators since the early 20th century
– Automatic percolators available since the 1940s

**3. Usage and Versatility:**
– Found in offices, cafeterias, and community events
– Popular among campers for making coffee without electricity
– Suitable for making large quantities of coffee at once
– Versatile for various settings and group activities

**4. Improvements in Percolators:**
– Ground coffee filter rings introduced in 1970
– Neuerer Aromators used double-layered porcelain filters
– Provided convenience and efficiency in brewing coffee

**5. Decline and Comparison:**
– Popularity declined in the early 1970s
– Introduction of electric drip coffee makers contributed to decline
– Market for self-contained ground coffee filters diminished
– Comparison with other brewing methods like Moka brewing and drip brewing

Coffee percolator (Wikipedia)

A coffee percolator is a type of pot used for the brewing of coffee by continually cycling the boiling or nearly boiling brew through the grounds using gravity until the required strength is reached. The grounds are held in a perforated metal filter basket.

Electric percolator

Coffee percolators once enjoyed great popularity but were supplanted in the early 1970s by automatic drip-brew coffeemakers. Percolators often expose the grounds to higher temperatures than other brewing methods, and may recirculate already brewed coffee through the beans. As a result, coffee brewed with a percolator is particularly susceptible to overextraction. However, percolator enthusiasts maintain that the potential pitfalls of this brewing method can be eliminated by careful control of the brewing process.

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