The present invention relates to a sterile feeding bottle which is manufactured in disposable plastic and/or rubber materials, resistant to heat, including that produced by microwaves, and which has the special feature of incorporating a solute and a solvent which are separate from each other but which can be mixed by simple and novel means which are incorporated in the feeding bottle, for the preparation of a compound, and without coming into contact with any of the components, or any of the elements of the feeding bottle itself, including the teat.