The invention relates to a method for dosing pre-portioned textile detergents which are packed in bags made of a water-soluble film. Said bags are introduced into a dimensionally stable, preferably round, reclosable hollow body, which on one side in its outer wall has one or more permanent openings (4). After closing of the hollow body the bags, in this form and undergoing a movement, are brought into contact with the water which serves to produce the lye. Arranging the openings in the hollow body on one side only permits a very even distribution of the detergent in the lye. According to a special version of the invention the hollow body also has a perforated separating wall (5) inside it. The method is especially well suited for dosing viscous, gel-like or paste-like detergents.