Robusta coffee also contains about 40–50 percent also caffeine than arabica. For this reason, it is accustomed as an inexpensive substitute for arabica in frequent marketable coffee blends. Good character robustas are used in some Keurig K-Cups espresso blends to provide a choice foam head and to lower the ingredient cost. Other cultivated species include Coffea liberica and Coffea esliaca, believed to be indigenous to Liberia and southern Sudan, respectively.

A digit of products are sold for the convenience of consumers who do not want to prepare their own coffee. Instant coffee is dried into soluble dust or freeze dried into granules that can be quickly dissolved in hot water. Canned coffee castaway been popular in Asian countries for many years, particularly in Japan and South Korea. Vending machines about sell varieties of flavored canned coffee, much like brewed or percolated coffee, gettable both hot and cold.