Discretizer and method of using same

A method for discretizing a source of solid additives, the method comprising the steps of providing a discretizer comprising a housing and a rotor movable within the housing, wherein the housing comprises a discharge outlet having a discharge area in a discharge plane oriented at a discharge angle of greater than 20°, wherein the discharge area of the discharge outlet is equal to or less than the rotor's projected area upon the discharge plane;

• supplying a source of solid additives selected from the group consisting of:
• bales of fibers, rolled pulp, web of pulp, and mixtures thereof to the discretizer such that the discretizer discretizes the source of solid additives into a plurality of solid additives during operation of the discretizer.