Oolong tea is a unique type of famous tea in China, which is known as its special aroma like flowers and fruits, taste of briskness and mellowness. In recent years, many researches show that oolong tea has physiological and pharmacological functions of reducing blood pressure, fat and cholesterol, anti- radiation and anti-senescence. So that more and more people take drinking oolong tea every day as a good way to become slim and healthy. These trends accelerate consumptions and demands of oolong...