The cold brewing method is much slower, smoother, and gentler. Cold water slowly draws flavor from the leaves. This is the opposite of hot water infusion, which rapidly pushes flavor out of the leaves. The brewing method is very simple. Use fifty percent more tea leaves than recommended in the brewing instructions. Put 4 to 6 teaspoons of Ti Quan Yin Oolong tea leaves in a pitcher, add 8 glasses of cold water and leave it overnight in the refrigerator for 8-12 hours. Remove the tea leaves and enjoy a delightful glass of cold brewed tea!