CFR > Title 7 - Agriculture > SUBTITLE B—Regulations of the Department of Agriculture > CHAPTER I—AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (parts 27 to 206) > SUBCHAPTER C—REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 (parts 51 to 75) > PART 51—FRESH FRUITS, VEGETABLES AND OTHER PRODUCTS 1,2 (INSPECTION, CERTIFICATION, AND STANDARDS) > SUBPART —United States Standards for Grades of Potatoes for Processing 1 (§51.3410 to §51.3418) > 51.3410—Grades.

51.3410—Grades.

(a) “U.S. No. 1 Processing” consists of potatoes which meet the following requirements:
(1) Basic requirements:
(i) Similar varietal characteristics;
(ii) Moderately firm; and,
(iii) Fairly well shaped.
(2) Free from:
(i) Freezing or freezing injury;
(ii) Blackheart;
(iii) Late Blight Tuber Rot;
(iv) Southern Bacterial Wilt;
(v) Bacterial Ring Rot;
(vi) Insects, worms or larvae;
(vii) Soft rot and wet breakdown; and,
(viii) Loose sprouts, dirt and foreign material.
(3) Free from damage by any cause.
(4) Size. Unless otherwise specified, individual potatoes shall be not less than 2 inches in diameter or 4 ounces in weight. Percentage(s) of a larger size(s) and/or a maximum size may be specified.
(b) “U.S. No. 2 Processing” consists of potatoes or usable pieces of potatoes which meet the following requirements:
(1) Basic requirements:
(i) Similar varietal characteristics;
(ii) Moderately firm; and,
(iii) Not seriously misshapen.
(2) Free from:
(i) Freezing or freezing injury;
(ii) Blackheart;
(iii) Late Blight Tuber Rot;
(iv) Southern Bacterial Wilt;
(v) Bacterial Ring Rot;
(vi) Insects, worms or larvae;
(vii) Soft rot and wet breakdown; and,
(viii) Loose sprouts, dirt and foreign material.
(3) Free from serious damage by any cause.
(4) Size. Unless otherwise specified, whole potatoes shall be not less than 1 1/2 inches in diameter, or usable pieces shall be not less than 4 ounces in weight. Percentage(s) of a larger size(s) and/or maximum size may be specified.