PROBLEM TO BE SOLVED: To enable production in a sterile state and guarantee of a sterile state in a liquefied gas in the production and supply of a sterilized liquefied gas. SOLUTION: A liquefied gas storage tank, a source gas supply device for supplying a source gas to the liquefied gas storage tank, a cooling device for cooling the inside of the liquefied gas storage tank to liquefy the source gas, and the source gas A supply pipe connecting the supply device and the liquefied gas storage tank, a sterilizing filter provided in the supply pipe, and a sterilizing device that heat sterilizes a sterilization region located downstream of the sterilizing filter with high temperature saturated steam, An aseptic liquefied gas production apparatus having a drying device for removing water generated by the heat sterilization to dry the sterilized area. [Selection diagram] Figure 1【課題】無菌液化ガスの製造・供給において、無菌状態での製造と、液化ガスにおける無菌状態の保証を可能とする。【解決手段】液化ガス貯留タンクと、前記液化ガス貯留タンクに原料ガスを供給する原料ガス供給装置と、前記液化ガス貯留タンク内を冷却して前記原料ガスを液化する冷却装置と、前記原料ガス供給装置と前記液化ガス貯留タンクとを接続する供給配管と、前記供給配管に設けられる滅菌フィルタと、前記滅菌フィルタよりも下流部分に位置する滅菌領域を高温飽和水蒸気により加熱滅菌する滅菌装置と、前記加熱滅菌により生じた水分を除去して前記滅菌領域を乾燥させる乾燥装置とを有する無菌液化ガス製造装置。【選択図】図１
