The influence of the atomization method on the product homogeneity in spray drying is discussed. For identical drying histories at individual particles, a narrow drop size distribution has to be achieved in order to produce a homogeneous powder. Spray drying experiments with aqueous solutions of polyvinylpyrrolidon and D-Mannitol were carried out. For generation of narrow distributed droplets a laminar operated rotary atomizer is applied. Homogeneous particle properties of the powders were achieved. However, this kind of atomization requires special drying gas distribution. A possible geometry for a proper heating gas distribution is presented.