Me thinks kingstudruler hit with the nail on the head. I'm going to bet one non-existent fake dollar that OP's plant is adding x-ray to satisfy a customer requirement, maybe someone that rhymes with Rostro. If your PRP's and PC's are controlling FM but metal was the only hazard identified as needing a CCP, and that hasn't changed in your process or HA, then technically that x-ray is only there to detect metal. The CCP does not dictate what hazards we scan for. In my agreement with king, you'll want to ensure the x-ray can meet the same critical limits for metal FM as your metal detectors do, and they can then be listed in the same metal detection step in the HACCP flow chart and HA.
Now, what'll be interesting to monitor is whether the x-ray starts to hit on things you weren't expecting to find. Could be that with its non-metal superpowers, you start finding rejections bearing non-metal FM's. In which case, you'd have to wholly revisit your HA to discover where the non-metal FM is not being controlled and then update that that FM is being controlled at your x-ray CCP. Which then means MD alone won't be enough for identical lines/processes.
Edited by jfrey123, 04 June 2025 - 08:00 PM.