[Problem] To provide a agitation/defoaming method and device with which both of uniformity in dispersion of object to be processed and reduction of air bubbles can be achieved with high precision.

[Solution] Provided is a agitation/defoaming method for producing orbital and spin motions of a container containing object to be processed by a device provided with orbital and spin drive motors that can independently control the velocities of the orbital and spin motions. Both defoaming and agitating treatments with high precision can be achieved by respectively performing a reverse rotation superimposition processing, wherein the rotational frequency of the spin drive motor is obtained by superimposing the first rotational frequency in a direction opposite to the direction of the orbital motion on the frequency of the orbital motion, and a same rotation superimposition processing, wherein the rotational frequency of the spin drive motor is obtained by superimposing the second rotational frequency in the same direction as the direction of the orbital motion on the frequency of the orbital motion, at least once.

A slurry manufacturing apparatus includes a rotation-revolution mixing device which mixes and prepares a slurry by rotational movement and revolving movement and a gas injection mechanism which dissolves carbonic acid gas in the slurry prepared by the rotation-revolution mixing device, in which the gas injection mechanism dissolves the carbonic acid gas in the slurry by injecting the carbonic acid gas under pressure in a sealed state.

An apparatus configured for mixing the contents of one or more fluid containers includes a fluid container support platform configured to hold one or more fluid containers. The fluid container support platform is configured to index the container to one or more specified locations and to be moved in an orbital path about an orbital center independently of the rotation about the central axis of rotation. The apparatus further includes an indexing drive system configured to effect indexing movement of the container support platform and a vortex drive system configured to effect powered orbital movement of the container support platform about the orbital center. An evaporation limiting insert placed within containers reduces exposure of the fluid contents of the container to atmospheric air, thereby reducing susceptibility of the fluid contents to evaporation.