Many thanks for asking! We advise clipping off the ends of the food before spiralizing it for optimal results. This will make the items square rather than round when they come into contact with both the spiralizer blades. Call customer assistance at 800-523-5993 from Monday through Friday, 6 am to 5 pm Pacific Time, if these suggestions aren’t helpful. When phoning, please have the unit close by so that customer support may inspect all the parts.