Method for producing particles

A method for producing particles, at least partially crystallized, under pressure, comprising reciprocal dissolving of at least one fluid under higher or slightly lower pressure than its critical pressure, with at least one substance to be treated, in a dissolving zone, followed by rapid depressurization with at least one depressurizing means, downstream of the dissolving zone, so as to collect said particles, at least partially crystallized, in a collecting zone located downstream of said depressurizing means, said substance to be treated comprising fat, wherein said method further comprises a collecting of particles at least partially crystallized in the dissolving zone.

A device for producing particles at least partially crystallized, under pressure, comprising at least a first reactor suitable for reciprocal dissolving of at least one substance to be treated with at least one fluid under higher or slightly lower pressure than its critical pressure, followed by at least one depressurizing means, downstream of the first dissolving reactor, which supplies at least one second reactor suitable for collecting at least partially crystallized particles, downstream of said depressurizing means, wherein the first dissolving reactor is also suitable for collecting at least partially crystallized particles.