Not illegal. According to Article 29 of the People's Republic of China (PRC) Food Safety Law promulgated by the NPC Standing Committee on February 28th, 2009, the state implements a licensing system for food production and operation. Those who engage in food production, food circulation and catering services shall obtain food production licenses, food circulation licenses and catering service licenses according to law. "Regulations, operating in prepackaged foods should obtain a" food circulation license "before operating. Pizza shops selling prepackaged milk tea comply with the Food Safety Law.