Disclosed is a process for preparing an encapsulated fragrance composition. The composition comprises a plurality of microcapsules dispersed in a dispersion medium. The microcapsules comprise a core and a shell around the core. The process comprises the consecutive steps of: a) Providing an aqueous phase (I) comprising at least one anionically modified polyisocyanate (A)； b) Providing an organic phase (II) comprising at least one fragrance ingredient； c) Mixing the aqueous phase (I) and the an organic phase (II) to obtain a mixture； d) Forming an emulsion comprising droplets of the organic phase (II) in the continuous aqueous phase (I)； e) Adding at least one polyfunctional amine； f) Effecting formation of shells around the droplets formed in step d), to obtain a dispersion of microcapsules. The process comprises the additional step of adding a polyisocyanate (B), which is different from polyisocyanate (A).
