Two stage liquid blow molding method with heat sensitive ingredient

A liquid blow molding method for molding a bottomed tubular-shaped preform into a liquid-containing container in which a content liquid is held, the liquid blow molding method comprising:

• a first molding step of liquid blow molding the preform into a halfway shape by supplying, into the preform that has been heated to a predetermined temperature, a first liquid at a predetermined pressure through a nozzle;
• and
• a second molding step, performed after the first molding step, of liquid blow molding the preform by supplying the first liquid and a second liquid into the preform at a predetermined pressure through the nozzle, a pressure of the first liquid supplied to the preform in the second molding step being higher than a pressure inside the liquid blow molded preform, and a pressure of the second liquid supplied to the preform being the same as the pressure of the first liquid supplied to the preform,
• wherein:
• the second liquid is an enzyme liquid detergent containing an enzyme as an ingredient that is susceptible to degradation by heat, and
• the first liquid does not comprise the ingredient that is susceptible to degradation by heat.