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In this episode of the Whole Grain Podcast, host Jim Lenz, Director of Global Education and Training at GEAPS, sits down with Dr. Gretchen Mosher, Associate Professor in the Department of Agricultural and Biosystems Engineering at Iowa State University. Dr. Mosher is a nationally recognized expert on grain quality, measurement systems, and safety management — and her research reveals why testing is one of the most powerful tools grain handlers have for protecting quality, reducing risk, and making informed operational decisions.

Key Takeaways

Testing is about information — not punishment.

Testing provides actionable data that helps grain handlers make better decisions about drying, storing, blending, and shipping products. It validates when quality is on target and identifies small issues before they become costly problems.

A strong testing strategy is essential risk management.

Most grain quality or safety failures start small. Routine sampling and testing catch issues early, protect millions of dollars in inventory, and support compliance with FSMA and other regulatory requirements.

Both incoming and outgoing testing matter.

Testing inbound grain establishes a baseline. Testing outbound grain provides documentation and leverage when customers question quality — proving the product met standards when it left the facility.

Consistency is king: garbage in, garbage out.

Valid sampling procedures are the foundation of trustworthy data. Inconsistent sampling or uncalibrated equipment create errors that distort results.

Composite sampling and two-tiered testing improve reliability.

Small samples collected over time create an accurate picture of quality. Simple rapid tests help flag samples needing deeper analysis.

Testing data only has value if you use it.

Data that’s collected but ignored is wasted investment. Facilities should use test results to guide blending, storage decisions, aeration, safety controls, and customer allocation.

Good testing protects export markets.

Documentation proves that grain marketed as non-GMO, food-grade, or identity-preserved was handled correctly.

Future technologies will enhance sampling — not replace judgment.

Machine vision, sensors, and automated systems are improving sampling accuracy, but the core purpose remains the same: better information for better decisions.

Pull Quotes

• “Testing gives you information — and people make better decisions when they have better data.”
• “Most big problems in grain start small. Testing helps you catch them early.”
• “Garbage in, garbage out. Consistent sampling is the key to reliable results.”
• “If you collect data and don’t use it, you might as well put a pile of money on the floor and light it on fire.”
• “You have total control over the quality of your data.”

Important Links & Related Episodes

• Iowa State University Department of Agricultural and Biosystems Engineering
• Introduction to Grain Quality Management (GEAPS Online Course)

Grain Elevator and Processing Society champions, connects and serves the global grain industry and its members. Be sure to visit GEAPS’ website to learn how you can grow your network, support your personal professional development, and advance your career. Thank you for listening to another episode of GEAPS’ Whole Grain podcast.