Which of the following is not a grade of asparagus?

The grading system for asparagus includes classifications that help consumers and sellers identify the quality and size of the product. In this context, "Extra," "Standard," and "Fancy" are all recognized grades of asparagus, each indicative of certain quality criteria such as size, color, and overall appearance.

"Extra" typically refers to the highest quality asparagus, with strict standards regarding uniformity and appearance. "Standard" is a common classification for asparagus that meets basic quality requirements. "Fancy" often refers to asparagus that is of very good quality but may have slight imperfections that do not significantly detract from its usability.

On the other hand, "Medium" is not an established grade for asparagus. While it may describe the size or characteristics of the asparagus, it does not align with the official grading terminology used in commercial practices. Therefore, it is not recognized as a valid grade, making it the correct answer in this context. Understanding these grading standards is crucial for navigating agricultural regulations and ensuring appropriate classification in marketing practices.