In a method for producing creams by subjecting a liquid to be treated containing a separated cream separated from milk to sterilization and homogenization, a sterilization step of heating the liquid to be treated, and the liquid to be treated are homogeneous at 50 to 95 ° C. A first homogenization step, a second homogenization step for homogenizing the liquid to be treated at 50 ° C. or higher after the first homogenization step, and at least before the sterilization step and the second homogenization step. The process liquid is degassed at a degassing temperature of 50 to 95 ° C. under a negative pressure of degassing pressure −0.025 to −0.003 MPa, and has a dissolved gas reduction process for reducing the dissolved gas. Without bubbling, at least the dissolved gas reduction step and the subsequent sterilization step and second homogenization step are performed in a series of closed systems filled with the liquid to be treated.乳から分離した分離クリームを含む被処理液を、殺菌処理および均質化処理してクリーム類を製造する方法において、被処理液を加熱する殺菌工程と、被処理液を50~95℃にて均質化する第1均質化工程と、第1均質化工程の後に、被処理液を50℃以上で均質化する第2均質化工程と、少なくとも前記殺菌工程および第2均質化工程の前に、被処理液を脱気温度50~95℃にて、脱気圧-0.025~-0.003MPaの負圧下で脱気し、溶存ガスを低減させる溶存ガス低減工程を有し、被処理液に対してバブリングを行わず、少なくとも溶存ガス低減工程と、その後に行う殺菌工程および第2均質化工程とを、被処理液で満たされた一連の密閉系内で行う。