To provide a system capable of being easily incorporated in a production line of processing of various kinds of liquid-subjective food with a simple configuration, and allowing control fit for an improvement object such as texture, eating quality, flavor component extraction, and freshness holding in each production item.

In this liquid turbulence generation device, a single body of each of two kinds of turbulence-generating chips 8a, 8b each having a size not flowing out from a liquid supply port 1 and a liquid discharge port 2, a plurality of chips 8a or chips 8b, or a composite combination between the two kinds is charged in a reverse conical or reverse polyangular pyramid-shaped funnel portion 6 present in the center of a liquid flow passage. The liquid turbulence generation device imparts resistance to the liquid passing through the flow passage to generate turbulence. The combination such as the single body of each of the two kinds of turbulence-generating chips, the plurality of chips, or the composite combination between the two kinds is freely changed in accordance with the improvement object or the kind of the liquid to perform the control.