Introduction

A cup of black coffee

Coffee is a beverage brewed from roasted coffee beans. Darkly colored, bitter, and slightly acidic, coffee has a stimulating effect on humans, primarily due to its caffeine content. It has the highest sales in the world market for hot drinks.

The seeds of the Coffea plant's fruits are separated to produce unroasted green coffee beans. The beans are roasted and then ground into fine particles typically steeped in hot water before being filtered out, producing a cup of coffee. It is usually served hot, although chilled or iced coffee is common. Coffee can be prepared and presented in a variety of ways (e.g., espresso, French press, caffè latte, or already-brewed canned coffee). Sugar, sugar substitutes, milk, and cream are often added to mask the bitter taste or enhance the flavor.

Though coffee is now a global commodity, it has a long history tied closely to food traditions around the Red Sea. The earliest credible evidence of coffee drinking as the modern beverage appears in modern-day Yemen in southern Arabia in the middle of the 15th century in Sufi shrines, where coffee seeds were first roasted and brewed in a manner similar to how it is now prepared for drinking. The coffee beans were procured by the Yemenis from the Ethiopian Highlands via coastal Somali intermediaries, and cultivated in Yemen. By the 16th century, the drink had reached the rest of the Middle East and North Africa, later spreading to Europe. (Full article...)

Maraba coffee (Kinyarwanda: Ikawa ya Maraba; French: Café de Maraba) is grown in the Maraba area of southern Rwanda. Maraba's coffee plants are the Bourbon variety of the Coffea arabica species and are grown on fertile volcanic soils on high-altitude hills. The fruit is handpicked, mostly during the rainy season between March and May, and brought to a washing station in Maraba, where the coffee beans are extracted and dried. At several stages, the beans are sorted according to quality. The farmers receive credits based on the amount and quality of the beans they provide.

The beans are sold to various roasting companies, with the best beans going to Union Coffee Roasters of the United Kingdom, who produce a Fairtrade-certified brand and Community Coffee of the United States. Rwanda Smallholder Specialty Coffee Company (RWASHOSCCO) buys from Maraba and sells to the domestic market. Maraba coffee is also brewed into a beer.

About 500,000 smallholder farmers grow the coffee plants under the Abahuzamugambi cooperative, founded in 1999. Since 2000, the cooperative has been supported by the National University of Rwanda (NUR) and the PEARL. The cooperative has improved coffee quality and penetrated the speciality market. (Full article...)
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... that in the 18th century the owners of Tom King's Coffee House developed their own argot, Talking Flash, to prevent informers learning of their misdeeds?
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Caffè lungo

Lungo (lit.'long') is a coffee beverage made by using an espresso machine to make an Italian-style coffee – short black (a single espresso shot) with more water (generally twice as much), resulting in a larger coffee, a lungo.

A normal serving of espresso takes from 18 to 30 seconds to pull, and fills 25 to 30 millilitres, while a lungo may take up to a minute to pull, and might fill 50 to 70 millilitres. Extraction time of the dose is determined by the variety of coffee beans (usually a blend of Arabica and Robusta), their grind and the pressure of the machine. It is usually brewed using an espresso machine, but with two times the amount of water to the same weight of coffee, to make a much longer drink. (Full article...)

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