Arabica coffees (or Arabicas) have a delicate flavour and balanced aroma coupled with a sharp and sweet taste. They have about half the amount of caffeine compared to Robustas. Arabicas are harvested between November to January, and are typically grown on higher altitudes ranging from 600 to 2000 metres in cool, moisture-rich and subtropical weather conditions. They require nutrient-rich soil to be able to conform to the highest international coffee standards. Four popular varieties of Arabica coffee are: