The term "World's Three Great Coffees" has been loosely used to refer to Jamaican Blue Mountain, Hawaiian Kona, and Yemen Mocha. While the origins of this categorization are unclear, these beans have long been celebrated for their unique flavors and qualities. Particularly in Japan, Kilimanjaro coffee has often been included in this trio, perhaps due to strategic marketing by Japanese companies.

Until the early 1990s, coffee beans were generally less distinctive, and roasters, blenders, and brewers had to rely heavily on their techniques to differentiate their products. However, the emergence of specialty coffee, which showcased the unique characteristics of beans from specific regions without the need for blending, revolutionized the industry.

Unfortunately, many of the once-venerated coffees have faced significant challenges. Yemen, for example, has been plagued by civil war, leading to a sharp decline in coffee production. Similarly, Hawaii Kona has suffered from coffee berry borer and leaf rust, affecting both yield and quality. The Jamaican Blue Mountain, once synonymous with luxury, has seen its reputation tarnished by the influx of aged beans onto the market following the 2008 financial crisis.

As these traditional favorites have declined, new and exciting coffees have emerged to capture consumers' palates. Panamanian Geisha and anaerobic fermented coffees have become sought-after for their complex flavors and unique processing methods.

The world of coffee is in constant flux. While the "World's Three Great Coffees" may have been celebrated in the past, their dominance is no longer assured. As coffee production and consumption continue to evolve, it's clear that the future of coffee will be shaped by a diverse range of factors, including climate change, consumer preferences, and innovative processing techniques.