Dairy Products

U.S. Grade Standards for Dairy are voluntary and aid in the marketing of milk and dairy products by providing a common language of trade through the development, improvement, and interpretation of standards, specifications and quality improvement programs.

Individuals or industry groups who wish to propose the development or revision of a U.S. grade standard may contact the Agricultural Marketing Service (AMS).  Any action AMS takes on U.S. grade standards will reflect the broad interest of individuals, industry, and federal, state, and local agencies.

Visual Aids

Special photo guides, models, color standards, and other visual interpretative guides are available for reference to specific U.S. Grade Standards.

USDA Butter Color Guide

Develop or revise a U.S. grade standard please contact:

Haiping Li, Food Technologist
Haiping.Li@usda.gov
202- 720-1671

For additional information on visual aids please contact:

Haiping Li, Food Technologist
Haiping.Li@usda.gov
202- 720-1671