What is not controlled by Federal Orders regarding the quality of Grade A milk?

Federal Orders are a set of regulations established to manage different aspects of the dairy industry in the United States, particularly concerning the marketing and pricing of milk. However, the phrase "Controlled by Federal Orders" in this context is not specifying a particular aspect of milk quality that is regulated, making it the correct response to the question of what is not controlled.

Temperature fluctuations during storage, quality testing methods, and the broader regulations put forth by Federal Orders all pertain directly to standards implemented to ensure the quality and safety of Grade A milk. For instance, Federal Orders set specific guidelines for the acceptable temperature ranges for stored milk to prevent spoilage and maintain freshness. Similarly, they define quality testing protocols to ensure the milk meets safety and quality standards before it reaches consumers.

Therefore, the option indicating that something is "Controlled by Federal Orders" does not specifically identify an element related to Grade A milk quality management, distinguishing it as the correct answer to the question. This highlights that while Federal Orders have comprehensive regulations in place, not all aspects of milk quality are explicitly defined as being regulated.