The present invention addresses the problem of providing a novel freezing system and a method for producing frozen ingredients, the system and method being such that the amount of free water after defrosting of the frozen ingredients is lower than with conventional freezing. The present invention solves the above problem by providing an ingredient freezing system comprising two or more freezing units for freezing the ingredient, and a transport unit for transporting the ingredient to the two or more freezing units, the two or more freezing units being configured so as to freeze the ingredient in stages so that the ingredient is frozen at progressively lower temperatures as the ingredient is transported on the transport unit.