robustas

/roʊˈbʌstəz/
noun
  1. A type of coffee bean (Coffea canephora) that is stronger and more bitter than Arabica, often used in instant coffee and espresso blends.
    • The instant coffee in the jar is made mostly from robustas.
    • Robustas are easier to grow because they resist pests better.
    • Many coffee shops blend robustas with Arabica for a stronger flavor.