Roasted Barley Tea, aka Boricha in Korean, is generally rearded as a cooling beverage in Summer and warming tea in Winter. This tea is a great coffee substitute since it is caffeine-free. Try this healthy drink in both hot and cold type. To brew roasted barley tea (serving 6), prepare 2 Tbsp of roasted barley and 8 cups of water. In a small pot, bring barley and water to a boil. Reduce heat, cover and simmer for 6 minutes. Serve immediately as a hot tea or store in the refrigerator and serve as a cold beverage. Barley tea is a very nutritious cooling drink that helps bring down fever. It is also helpful for lowering bad cholesterol and relieving constipation.