The present invention is in the field of stirring, and particularly relates to a stirring assembly including a rotary shaft and a stirring member. The stirring member is fixedly provided on the rotary shaft. The rotary shaft is provided with a first passage therein. The first passage is formed with an air inlet through one end of the rotary shaft. The stirring member is provided with a second passage therein. The second passage is formed with an air outlet through the stirring member. The second passage is connected with the first passage. In the present invention, when the rotary shaft is rotating, the external air is drawn in from the air inlet and discharged from the air outlet to make the liquid to be mixed by the stirring member with the air discharged from the air outlet.

Formulation and dispenser systems create dairy based toppings for beverages. The dispensers include a container, valve, and an actuator for the valve. The formulations include a liquid product and a propellant. The liquid product includes a certain percentage of milkfat provided, for example, by heavy cream, skim milk, nonfat dry milk, sweeteners, and an emulsifier. The propellant is nitrous oxide or nitrogen.

Formulation and dispenser systems create dairy based toppings for beverages. The dispensers include a container, valve, and an actuator for the valve. The formulations include a liquid product and a propellant. The liquid product includes a certain percentage of milkfat provided, for example, by heavy cream, skim milk, nonfat dry milk, sweeteners, and an emulsifier. The propellant is nitrous oxide or nitrogen.

An aerator mixing rod includes a body having a first end, a second end opposite the first end, an outer surface, and a plurality of teeth extending radially outward from the outer surface. The teeth include a first row of teeth and a second row of teeth spaced from the first row of teeth along a longitudinal axis of the body. A first passageway is formed between adjacent teeth of the first row of teeth, and a second passageway is formed between adjacent teeth of the second row of teeth. The first passageway is at least partially misaligned with the second passageway in a direction parallel to the longitudinal axis to at least partially form a tortuous path for fluid flowing along the outer surface of the body. The aerator mixing rod is formed from an injection-moldable material by an injection molding process.