PROBLEM TO BE SOLVED: To provide a beverage manufacturing method for preventing deterioration of flavor of beverage by nitrogen substitution as well as sterilizing or providing antibacterial activity.SOLUTION: There is provided a beverage manufacturing system 100 having a degasification part 130 for reducing gas concentration in beverage and a superfine air bubble generation part 120 for generating superfine air bubbles in the beverage, and the superfine air bubble generation part has a storage part 123 for storing the beverage. A beverage manufacturing method using the beverage manufacturing system has a first degasification process for degassing the beverage and reducing dissolved gas concentration, a nitrogen bubble generation process for generating the superfine air bubbles by nitrogen gas in the degassed beverage, and a heat sterilization process for heat sterilizing the beverage containing the superfine air bubbles by the nitrogen gas.EFFECT: By nitrogen substitution of dissolved oxygen in beverage with superfine air bubbles by nitrogen gas, generation of smell of burning by heating sterilization in a post process can be prevented. The beverage is sterilized by physical energy which generates the superfine air bubbles.SELECTED DRAWING: Figure 1【課題】窒素置換により飲料の風味の劣化を防止するとともに、殺菌または抗菌する飲料製造方法の提供。【解決手段】飲料内の気体濃度を低下させる脱気部130と、飲料内に超微細気泡を生成する超微細気泡生成部120とを備え、前記超微細気泡生成部は、飲料を貯留する貯留部123を備える、飲料製造システム100。この飲料製造システムを利用する飲料製造方法は、飲料を脱気し、溶存気体濃度を低下させる第1の脱気工程と、脱気された飲料に窒素ガスによる超微細気泡を生成する窒素バブル生成工程と、窒素ガスによる超微細気泡を含有する飲料を加熱殺菌する加熱殺菌工程とを含む。【効果】窒素ガスによる超微細気泡で飲料の溶存酸素を窒素置換することにより後工程の加熱殺菌により焦げ臭が生じることを防止できる。また超微細気泡を生成する物理エネルギーにより飲料が殺菌される。【選択図】図1
