Normal or High Sugar (su) corn delivers classic corn flavor, a firm texture, and creamy sweetness. The "SU" designation, short for "sugary-1," refers to the genetic trait that enhances its sweetness and texture. SU corn varieties have a higher sugar content compared to other types of corn, but lower than new, extra-sweet varieties. Known as the traditional sweet corn, SU corn is cherished for its juicy kernels and is a popular choice for fresh eating and cooking.