There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
archaebacteria, archaebacterium, archaeobacteria, archeobacteria
(noun) considered ancient life forms that evolved separately from bacteria and blue-green algae
Source: WordNet® 3.1
17 March 2025
(noun) magnet made of a substance whose magnetization is proportional to the strength of the magnetic field applied to it
There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.