Grading ensures that buyers receive grains of consistent quality. Grains can vary widely in factors such as moisture content, size, colour, purity and presence of foreign materials. Grading allows sellers to classify grains according to these factors, giving buyers confidence in the product they are purchasing.

Grading helps establish fair market prices for grains. Higher-quality grains typically command higher prices, while lower-quality grains may be sold at a discount. Grading allows sellers to accurately price their products based on their quality, helping to ensure fair transactions for both parties.

Grading helps grains compete in the market. Buyers often have specific requirements for the grains they purchase, such as certain moisture levels or purity standards. Grading allows sellers to match their products to the needs of buyers, making their grains more marketable.

Grading helps mitigate risks for both buyers and sellers. By providing standardized quality classifications, grading reduces the likelihood of disputes over the quality of grains delivered. This helps protect both parties from financial losses and maintains trust in the marketplace.

In many countries, grading is required by law or government regulations. These regulations may set standards for grain quality and establish grading procedures to ensure compliance. Grading helps ensure that grains sold meet these legal requirements.
Grading grains typically involves inspecting samples of the grain for various quality attributes, such as size, moisture content, foreign material content, and visual appearance. Grading may be performed by sellers themselves or by independent third-party inspectors. The grading process may involve visual inspection, measurement of physical attributes and laboratory analysis.