PROBLEM TO BE SOLVED: To provide a WS-12 ((1R,2S,5R)-N-(4-methoxyphenyl)-2-isopropyl-5-methylcyclohexane carboxamide), which is though known as a cool-feeling agent, fine particle that solves the problem that WS-12 does not provide cool-feeling even when the usually available powder having an average particle size of 100 &mum is directly taken up into mouth cavity, and that it has a high melting point and is difficult to be dissolved into water, oil or other many solvents, and it was difficult to achieve the cool-feeling effect.SOLUTION: An aggregate of powder is obtained by comminuting WS-12 by use of a grinder such that the average particle size (median size) as measured by a laser diffraction and scattering particle size distribution measuring apparatus is 0.01 &mum to 50 &mum the aggregate provides, when taken up into mouth cavity, an extremely strong cool-feeling and the cool-feeling continues for a long period of time.SELECTED DRAWING: None
