Code of Federal Regulations (Last Updated: May 6, 2024) |
Title 7 - Agriculture |
Subtitle B - Regulations of the Department of Agriculture |
Chapter I - Agricultural Marketing Service (Standards, Inspections, Marketing Practices), Department of Agriculture |
SubChapter C - Requirements and Standards Under the Agricultural Marketing Act of 1946 and the Egg Products Inspection Act |
Part 51 - Fresh Fruits, Vegetables, and Other Products (Inspection, Certification, and Standards) |
Subpart Q - United States Consumer Standards for Potatoes |
Size |
§ 51.1577 - Size range requirements.
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§ 51.1577 Size range requirements.
In addition to the quality requirements specified for the above grades, potatoes shall also meet the requirements for minimum and maximum diameter or weight, and the tolerances as specified for the various grades in the table appearing in this section. Potatoes specified as meeting one of the grades may be of any size within its size range requirements, except that it is not permissible to specify a lot as “U.S. Grade A Medium to Large,” or “U.S. Grade B Medium to Large,” unless more than 15 percent, by weight, of the potatoes are larger than the maxiumum size required for U.S. Grade A Medium, or U.S. Grade B Medium, respectively. For example, a lot of round or intermediate-shaped potatoes to be specified as “U.S. Grade A Medium to Large” must have more than 15 percent, by weight, of potatoes from 3 to 4 inches in diameter.
Grades Size range requirements, round or intermediate shaped varieties Size range requirements, long varieties Tolerance for size Minimum diameter (Inches) Maximum diameter (Inches) Minimum diam. or wt. Maximum weight (Ounces) Under-size (Percent) Over-size (Percent) U.S. Grades A & B small 11⁄2 21⁄4 11⁄2 inches 4 3 15 U.S. Grades A & B medium 21⁄4 3 4 ounces 10 5 15 U.S. Grades A & B medium to large 21⁄4 4 4 ounces 16 5 15 U.S. Grades A & B large 3 4 10 ounces 16 5 15