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.
bubbling, bubbly, foaming, foamy, frothy, effervescing, spumy
(adjective) emitting or filled with bubbles as from carbonation or fermentation; “bubbling champagne”; “foamy (or frothy) beer”
Source: WordNet® 3.1
spumy (comparative spumier, superlative spumiest)
frothy, emitting froth or spume
• spumous
• sumpy, yumps
Source: Wiktionary
Spum"ous, Spum"y, a. Etym: [L. spumosus, spuma foam: cf. F. spumeux.]
Definition: Consisting of, containing, or covered with, froth, scum, or foam; frothy; foamy. The spumous and florid state of the blood. Arbuthnot. The spumy waves proclaim the watery war. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
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.