Method for producing fine particles

A method for producing particles, comprising the steps of:

• introducing a fluid to be processed into a processing apparatus including at least two processing surfaces which are disposed in a position facing each other, the at least two processing surfaces being operable to approach to and separate from each other, at least one of the at least two processing surfaces rotating relative to the other;
• feeding the fluid to be processed into a space between the at least two processing surfaces;
• forming a thin film fluid in the space between the at least two processing surfaces;
• separating particles in the thin film fluid formed between the processing surfaces, thereby forming a fluid containing the separated particles;
• providing a temperature adjusting apparatus coupled to a storing unit which is configured to receive the fluid containing the separated particles after being discharged from the space between the at least two processing surfaces;
• supplying the fluid containing the separated particles, after being discharged from the space between the at least two processing surfaces, into the storing unit via a transporting flow path communicating with the space between the at least two processing surfaces;
• and
• controlling a temperature of the fluid containing the separated particles by the temperature adjusting apparatus, thereby controlling diameter of the separated particles.