Kona coffee beans are classified by law according to seed. Type I beans consist of two beans per cherry, flat on one side, oval on the other. Type II beans consist of one round bean per cherry, otherwise known as peaberries. Further grading of these two types of beans depends on size, moisture content, and purity of bean type. The grades of type I Kona coffee are 'Kona Extra Fancy', 'Kona Fancy', 'Kona Number 1', 'Kona Select', and 'Kona Prime'. The grades of type II Kona coffee are 'Peaberry Number 1' and 'Peaberry Prime'. Also, a lower grade of coffee, called 'Number 3' (or 'Triple X') can not legally be labeled as "Kona" but as 'Hawaiian' coffee. Any bean grade below Number 3 is considered 'Offgrade' coffee and can only be labeled as generic coffee. Not an official classification grade, but commonly used by Kona coffee farmers, is the 'Estate' grade where the various grades are not being separated from each other. Only the 'Number 3' and 'Offgrade' beans are being sorted out.