Food grading is a system that ranks food products by quality characteristics like taste, texture, appearance, and fat content. In the United States, grading is managed by the USDA and is voluntary: producers choose to have their products graded and pay for the service themselves. This is different from food inspection, which is mandatory and taxpayer-funded to ensure food is safe to eat. Grading doesn’t tell you whether food is safe. It tells you how good it is.
Grading vs. Inspection
The distinction trips up a lot of people. Inspection and grading are two separate USDA programs with completely different purposes. Inspection checks that food is wholesome and safe, free from contamination and disease. Every piece of meat and poultry sold in the U.S. must pass inspection by law. Grading, on the other hand, evaluates quality traits that affect your eating experience. A producer requests and pays for grading service, typically because a higher grade commands a higher price at retail or from restaurant buyers.
USDA grading fees run about $123 per hour for standard service, with overtime and holiday rates climbing higher. Smaller packing operations can now access grading through a remote program that uses imaging technology, making the system more accessible beyond large-scale processors. The cost is ultimately passed along in the price you pay at the store, which is one reason Prime beef costs more than Select even before you account for the quality difference.
How Beef Is Graded
Beef grading is probably the most familiar example. The USDA assigns quality grades based on two main factors: marbling (the white flecks of fat running through the lean meat) and the maturity of the animal. Younger cattle with more marbling score higher. There are eight total beef grades, but three matter at the grocery store: Prime, Choice, and Select.
Prime is the top tier, produced from young, well-fed cattle with abundant marbling. It’s the most tender, juicy, and flavorful, and most of it goes to restaurants and hotels rather than retail shelves. Choice has moderate marbling and is the most common grade you’ll find in supermarkets. Select is leaner and more uniform, but with noticeably less marbling it can lack the juiciness of the higher grades. Below Select, grades like Utility, Cutter, and Canner almost never appear in retail cases. They’re used for ground beef and processed products instead.
A higher beef grade doesn’t mean more protein or better nutrition. It means more intramuscular fat. Select beef is leaner, which some people actually prefer for health reasons. The grading system measures eating quality, not nutritional value.
How Eggs Are Graded
Egg grading evaluates the shell, the air cell inside, the firmness of the white, and the shape of the yolk. Grade AA eggs have the tightest standards: a clean, unbroken shell with a normal shape, an air cell no deeper than 1/8 inch, a firm white, and a yolk with only a slightly visible outline. That small air cell is what tells graders the egg is fresh, since the air pocket grows larger as an egg ages.
Grade A eggs are nearly identical but allow a slightly larger air cell (up to 3/16 inch) and a reasonably firm rather than firm white. These are what most grocery stores stock. Grade B eggs have weaker, watery whites, flattened yolks with a plainly visible outline, and shells that may be slightly stained or abnormally shaped. Small blood or meat spots are permitted in B eggs as long as they total no more than 1/8 inch across. Grade B eggs are perfectly safe but are typically sold for commercial baking or liquid egg products rather than in cartons.
How Produce Is Graded
Fresh fruits and vegetables follow their own grading standards, with criteria tailored to each type of produce. Apples, for instance, are evaluated on shape, color, and surface defects. A top-grade apple needs to be “well formed,” while lower grades allow increasingly abnormal shapes. For red apple varieties, graders measure the percentage of surface covered with a solid, characteristic red color.
Surface defects like russeting, sunburn, hail marks, scars, and bruises are measured and classified as “injury” or “damage,” with specific size thresholds determining which grade an apple receives. Tomatoes are graded partly by diameter, with size designations based on minimum and maximum measurements. The general pattern across all produce is the same: graders assess quality, condition, and size, then assign a class or rank.
You’ll rarely see USDA grade shields on individual apples or tomatoes at the supermarket, but the grades influence what ends up on the shelf. Top-grade produce goes to fresh retail. Lower grades get diverted to processing, canning, or food service.
How Dairy Is Graded
Butter is graded on flavor, body, color, and salt characteristics. Grade AA butter must have “a fine and highly pleasing butter flavor” and be made from sweet cream with low natural acid. A slight feed flavor or a definite cooked flavor is acceptable at the AA level, but any stronger off-flavors push the product into lower grades. Grade A and Grade B butter allow progressively more noticeable flavor deviations and texture imperfections.
International Grading Standards
Grading isn’t unique to the United States. Internationally, the Codex Alimentarius (literally “Food Code”) provides a framework for harmonizing food quality and safety standards across countries. Established jointly by the Food and Agriculture Organization and the World Health Organization, the Codex Commission has 188 member countries that negotiate science-based recommendations covering food safety and quality. These standards serve as the reference point in World Trade Organization trade disputes, meaning they carry real legal weight when countries disagree about the quality of imported food.
Individual countries maintain their own grading systems. Canadian beef uses grades like Prime, AAA, AA, and A. Japanese beef has its own marbling scale that goes far beyond the American system. Australian lamb, New Zealand dairy, and European produce all follow distinct national standards. The Codex framework helps ensure these systems are compatible enough to allow international trade without constant conflict over what counts as high quality.
What Grades Mean for Your Shopping
Food grades are a shorthand for sensory quality, not safety or nutrition. A Grade AA egg isn’t safer than a Grade B egg. A Prime steak isn’t more nutritious than a Select steak (it’s actually fattier). What grades do tell you is what to expect in terms of flavor, texture, and appearance.
For everyday cooking where meat gets braised, stewed, or heavily seasoned, Select beef performs fine and costs less. For a special-occasion steak where the meat is the star, Choice or Prime delivers noticeably better tenderness and flavor. Grade AA eggs matter most for poaching and frying, where the firmness of the white is visible on the plate. For scrambled eggs or baking, Grade A works identically. Understanding what each grade actually measures lets you pay for quality only when it makes a real difference on your plate.