The liquid bottle has a hollow body with a bottom and a neck with a cone located outside and below the upper end of the neck and exceeding its diameter. The neck has a conical chamfer on the inside, which in the working position serves as a diffuser for the dispensed liquid, the chamfer is conical in shape, and the surface of the cone is inclined to the symmetry axis of the neck at an angle α from 20° to 50°, an annular groove is made in the neck between its upper end and the upper end of the crown, and a thread is formed in the neck between the upper end of the crown and the lower end of the crown.