The filler helps prevent product corruption from outside sources by stopping contaminants from coming into contact with the material being filled. All cracks and crevices that are typically hard to clean in traditional auger fillers have been eliminated. As a result, all of the mechanical connections are outside the product contact area. All surfaces of the auger filler under or adjacent to the driving mechanism are readily accessible and the agitator blade and auger drive shaft may be efficiently removed for inspection and cleaning.