MID-certification for the Checkweigher

juli 9, 2025

Our Checkweigher is officially MID-certified, ensuring it meets strict European standards for legal weight control in packaging lines. In this blog, we explain what MID-certification means, why it’s essential for businesses that sell pre-packed goods by weight, and how it helps ensure compliance and accuracy. Whether you’re in food, beverage, or contract packaging, understanding MID can help you avoid legal issues and improve operational efficiency.

What does MID-Certified mean?

MID stands for the Measuring Instrument Directive (2014/32/EU) this is a European regulation that sets legal requirements for instruments used in commercial transactinos, including checkweighers. When a checkweigher is MID-certified, it has been independently tested and approved to guarantee high accuracy, reliability, and compliance with EU laws on pre-packed goods sold by weight or volume.
This certification ensures that your products are legally weighed, protecting both the consumer and your business from underfilling, overfilling, or regulatory violations. It turns your checkweigher into a legal-for-trade instrument, making it suitable for use in regulated environments such as food production, beverage bottling, and retail packaging.

Why MID-certification is essential for businesses that sell pre-packed goods by weight?

If your business sells pre-packaged products based on weight or volume, such as bottles, cans or sealed food products, it’s important to ensure that the stated weight matches what is actually delivered. In the European Union, this process is governed by legal metrology regulations, and using an MID-certified checkweigher helps you stay aligned with these standards and maintain consistent product quality.

Without MID-certification, you may face:

Questions during inspections regarding the accuracy of your weighing process
Lack of traceability and weight data for batch reporting or quality control
Occasional inconsistencies in product weight
Challenges when supplying to retailers or export markets that require legal-for-trade equipment

By choosing an MID-certified checkweigher, you ensure:

Compliance with EU packaging requirements
Consistent product weight and improved process control
Clear, auditable weight records for traceability and quality assurance
Reduced need for manual checks, lowering labor costs

I use a checkweigher that isn't MID-certified. How can I make sure I'm compliant?

Checkweighers from Zomerdijk Engineering that have already been installed require slight modifications to both hardware and software to meet the full certification criteria.

Once these adjustments are made, the machine can be officially certified by a local notified body authorized to issue MID-certification. Zomerdijk Engineering can support you in preparing the checkweigher for this and coordinate with the appropriate certification authority.

Want to get more information about the Checkweigher and the MID-certification?

All Zomerdijk Engineering checkweighers are designed to be upgraded to meet the requirements for MID certification. If you’re interested in purchasing or implementing one in your packaging line or need support with certification at your location, our engineers are ready to help.