Improved process for producing a dietary corn fibre

An improved process is disclosed for producing corn fiber having a high total dietary fiber content and a reduced SO₂ content. A dilute aqueous slurry of the corn fiber obtained from the corn wet-milling process is separated by means of a hydroclone to give a fiber fraction of enhanced total dietary fiber content. This fiber fraction is then passed into a first centrifugal paddle screen followed by two stages of washing, including washing with a second centrifugal paddle screen. Fiber from the second centrifugal paddle screen, which is optionally pressed to remove water that contains dissolved SO₂, is dried to make the final product. Heated water can be used during washing to remove additional SO₂ more effectively.