You can't. Nongfu Spring, namely Nongfu Spring Co., Ltd., formerly known as "Zhejiang Qiandao Lake Yangshengtang Drinking Water Co., Ltd.", was established on September 26th, 1996. Its headquarters is located in Hangzhou, Zhejiang Province, and it is the holding company of Yangshengtang. The company's green tea can't be drunk as water. Water is the source of life, which can help people's metabolism and is irreplaceable. Green tea is refreshing and suitable for people who often use electronic products.