Grades of Potatoes

• grade No. 1 consists of potatoes which meet the following requirements:

  • Similar varietal characteristics, except when designated as a mixed or specialty pack;
     
  • Firm;
     
  • Fairly clean;
     
  • Fairly well shaped;
     
  • Free from:
    • Freezing;
       
    • Blackheart;
       
    • Late blight, southern bacterial wilt and ring rot; and,
       
    • Soft rot and wet breakdown.
  •  Free from damage by any other cause. See §§51.1564 and 51.1565.
     
  • Size. Not less than 1-7/8 inches in diameter, unless otherwise specified in connection with the grade.
     
  • For tolerances see §51.1546.

• U.S. Commercial consists of potatoes which meet the requirements of grade No. 1 grade except for the following:

  • Free from serious damage caused by:
    • Dirt or other foreign matter;
       
    • Russet scab; and,
       
    •  Rhizoctonia.
  • Increased tolerances for defects specified in §51.1546.

• grade No. 2 consists of potatoes which meet the following requirements:

  • Similar varietal characteristics, except when designated as a mixed or specialty pack;
     
  • Not seriously misshapen;
     
  • Free from:
    • Freezing;
       
    • Blackheart;
       
    • Late blight, southern bacterial wilt and ring rot; and,
       
    •  Soft rot and wet breakdown.
  • Free from serious damage by any other cause. See §§51.1564 and 51.1565.
     
  •  Size. Not less than 1-1/2 inches in diameter, unless otherwise specified in connection with the grade.
     
  • For tolerances see §51.1546.