Abstract: A method for improving the application of liquid ingredients to a solid feed ingredient or pharmaceutical agent, comprising: a) preparing a liquid composition having low cloud point containing (i) an ingredient to be added to a solid material in amounts of 1% or less, and (ii) 0.1% to 10 wt. % of a non-ionic surfactant selected from castor oil-based surfactants having 20-60 ethylene units, b) applying the liquid composition onto a solid material which is a feed ingredient or a pharmaceutical agent, by spraying the liquid composition onto the surface thereof with an average droplet size of 20-200 microns, and mixing the solid material while applying the liquid composition, whereby the coefficient of variance of the ingredient (i) is 5% or less.