For graders, sorters, and equipment operators in the food product and processing system, the most beneficial education or training would likely be an internship.
An internship provides practical, hands-on experience which is crucial in this field. It allows individuals to learn about the processes, machinery, and standards of food processing and product handling directly in a real-world setting. While a bachelor's degree can also be helpful for some positions, practical experience gained through an internship is often more valuable for these specific roles.
Further education such as a master's degree or a PhD is generally not required for these positions and may not directly enhance the skills needed to perform day-to-day tasks effectively.