A process of making a containerized frozen whipped topping by the following steps is improved: (a) forming a mixture comprising water, water-soluble carbohydrate, fat, protein, emulsifying agent, and thickener; (b) pasteurizing the mixture; (c) homogenizing the mixture to form an oil-in-water emulsion; (d) cooling the emulsion to a temperature in the range of about 27 to 45.degree. F.; (e) holding the emulsion at a temperature in the range of about 27 to 45.degree. F. for a long enough time to allow at least some of the fat to crystallize; (f) aerating and whipping the emulsion, under superatmospheric pressure, into a topping; (g) dispensing the topping into containers; and (h) freezing the topping while in the containers. The improvement, which allows lower pressures to be used in step f, involves using two turbulent mixing zones, in which a higher average shear rate is used in the second zone than in the first zone.