there are some blended kona coffees that are made by mixing some kinds of coffee beans because 100% kona coffee is quite expensive because of labor and land cost. in the hawaii-grow coffee law, blended coffee that accounted for 10% of kona coffee beans can be called kona blended coffee. the coffees that have extra flavor like macadamia nut, vanilla and so on are also famous. those flavor coffees are made by adding flavor during roasting.