Potatoes for Chipping Grades and Standards

Grades of Potatoes for Chipping

  1. U.S. No. 1 Potatoes for Chipping consists of potatoes which meet the following requirements:

a. Basic requirements: 
1. Similar varietal characteristics; 
2. firm;
3. fairly clean; 
4. fairly well shaped.
b. Free from: 
1. Freezing; 
2. blackheart; 
3. late blight tuber rot; 
4. southern bacterial wilt; 
5. bacterial ring rot; 
6. nuts of nut sedge; 
7. tuber moth injury; 
8. soft rot and wet breakdown.
c. Free from damage by any other cause.
d. Size. Not less than 1-7/8 inches (47.7 mm) in diameter, unless otherwise specified. See §51.4577.
e. For tolerances see §51.4579.
  1. U.S. No. 2 Potatoes for Chipping consists of potatoes which meet the following requirements:

a. Basic requirements:
1. Similar varietal characteristics;
2. fairly firm;
3. not seriously damaged by dirt;
4. not seriously misshapen.
b. Free from:
1. Freezing; 
2. blackheart;
3. late blight tuber rot; 
4. southern bacterial wilt; 
5. bacterial ring rot; 
6. nuts of nut sedge;
7. tuber moth injury; 
8. soft rot and wet breakdown.
c. Free from serious damage by any other cause.
d. Size. Not less than 1-3/4 inches (44.5 mm) in diameter, unless otherwise specified. See §51.4577.
e. For tolerances see §51.4579..

Visual Aids

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Detailed standards, Inspection Instructions & Other Resources: