Grades of Canned Whole Kernel (Whole Grain) Corn
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U.S. Grade A is the quality of canned corn that:
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Meets the following prerequisites (Table I) in which the canned corn:
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Has similar varietal characteristics;
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Has a good appearance;
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Is well cut;
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Has a good flavor and odor; and
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Has good tenderness and maturity for the varietal type.
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Is within the limits for defects as specified in Tables II and III as applicable for the varietal type.
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U.S. Grade B is the quality of canned corn that:
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Meets the following prerequisites (Table I) in which the canned corn:
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Has similar varietal characteristics;
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Has a reasonably good appearance;
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Is reasonably well cut;
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Has a good flavor and odor; and
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Has reasonably good tenderness and maturity for the varietal type.
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Is within the limits for defects as specified in Tables II and III as applicable for the varietal type.
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U.S. Grade C is the quality of canned corn that:
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Meets the following prerequisites (Table I) in which the canned corn:
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Has similar varietal characteristics;
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Has a fairly good appearance;
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Is fairly well cut;
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Has a fairly good flavor and odor; and
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Is fairly tough for the varietal type.
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Is within the limits for defects as specified in Tables II and III as applicable for the varietal type..
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Substandard is the quality of canned corn that fails to meet the requirements of U.S. Grade C.
Photo Guide
Photo-Guide PG-12 for Classifying “Cut” and “Pulled” Kernels in Canned and Frozen Whole Kernel Corn and the Photo-Guide PG-13 Interpretive Guide Illustrating Discolored Kernels or Pieces of Kernels in Canned and Frozen Corn. See How to Purchase Photo Guides for more details.
Inspection Aid
- Area Measurement Guide, 8 x 10 in Metric Units
- Area Measurement Guide, 8 x 10 in English Units, IA#30A
- Headspace gauge
See How to Purchase Visual Aids for more details.
Detailed standards, Inspection Instructions & Other Resources:
- U.S. Grade Standards for Canned Whole Kernel (Whole Grain) Corn (pdf)
- Grading Manual for Canned Whole Kernel (Whole Grain) Corn (pdf)
- AIM General Procedures Manual, Small Units of Alien Vegetables Section (pdf)
- 21 CFR § 155.130 - Canned corn
- Certification Manual
- Condition of Container Manual
- Domestic Origin Verification (DOV) Program Manual
- Foreign Material Manual
- FDA Food Defect Action Level
- General Procedures Manual
- Safety Manual
- Sampling Manual
- Sanitation Manual
- SC-364-18 Score Sheet for Canned Whole Kernel (Whole Grain) Corn
- Technical Procedures Manual
- USDA Purchases Manual
- U.S. Standards for Determination of Fill Weights
- U.S. Standards for Inspection by Variables