Barley drink is a popular beverage, particularly in South East Asian. Do you know there are two types of barleys and their differences? 薏苡仁 Adlay seed or Coix Seed (yi yi ren), is bigger in size and 洋薏米 Pearl Barley, is smaller in size. Coix Seed rejuvenates the qi (energy) and drains dampness according to traditional Chinese medicines. While Pearl barley has been more widely consumed as a healthy dessert drink, it is better taste than Coix Seed. However the nutritional value (including protein, carbohydrates, dietary fiber, vitamins and minerals) are not as high as Coix Seed.