Food Metal Detection Checklist
Metal detection is typically designated as a Critical Control Point (CCP) or Operational Prerequisite Programme (OPRP) in the HACCP plan for most food manufacturing operations, where metal fragments from equipment wear, maintenance activities, or raw material contamination represent a significant physical hazard. BRC Global Standard Issue 9 Clause 4.10.3 and SQF Code Edition 9 require that metal detection equipment be verified with certified test pieces (ferrous, non-ferrous, and stainless steel
- Industry: Food Manufacturing
- Frequency: Per shift/Per production run
- Estimated Time: 10-15 minutes
- Role: QA/Production
- Total Items: 16
- Compliance: HACCP, GFSI Standards, BRC/SQF/FSSC 22000
Pre-Production Equipment Setup and Calibration Verification (BRC Issue 9 Clause 4.10.3.1)
Verify the metal detector is set up correctly for the product line being run, the aperture is the correct size for the product profile, and the sensitivity is at the maximum achievable level for this product given the product effect. Metal detector sensitivity is always lower for wet, high-salt, or high-fat products than for dry products due to the product's electromagnetic field interaction.
- Is the metal detector set to the correct sensitivity level for the product being run, documented in the CCP work instruction or control plan (e.g., Fe 2.5 mm, NFe 3.0 mm, SS 3.5 mm in a 200mm x 100mm aperture for packaged fresh produce), and has the sensitivity setting been verified against the product-specific CCP parameter sheet?
- Is the aperture size (opening through which product passes) appropriate for the product profile, with adequate clearance between the product and the aperture walls to prevent mechanical reject system false triggers?
- Has the metal detector passed a startup verification test using calibrated test pieces (ferrous sphere, non-ferrous sphere, stainless steel sphere) at the start of this production run, with all three test pieces rejected and the test result recorded on the CCP monitoring form?
In-Production Test Piece Verification (HACCP Principle 4 / BRC Clause 4.10.3.2)
Record the results of all test piece verification checks performed during this production run at the required CCP monitoring frequency. The monitoring frequency is defined in the HACCP plan; a common requirement is verification every 30-60 minutes during production. Every test must be documented at the time it is performed.
- Test 1 (time: ___, operator: ___): Fe sphere pass/fail: ___. NFe sphere pass/fail: ___. SS sphere pass/fail: ___. All passed? Y/N. If any failed: production stopped and corrective action initiated? Y/N:
- Test 2 (time: ___, operator: ___): Fe sphere pass/fail: ___. NFe sphere pass/fail: ___. SS sphere pass/fail: ___. All passed? Y/N. If any failed: corrective action initiated? Y/N:
- Test 3 (time: ___, operator: ___): Fe sphere pass/fail: ___. NFe sphere pass/fail: ___. SS sphere pass/fail: ___. All passed? Y/N. If any failed: corrective action initiated? Y/N:
- End-of-production test (time: ___, operator: ___): Fe sphere pass/fail: ___. NFe sphere pass/fail: ___. SS sphere pass/fail: ___. All passed? Y/N:
Reject Confirmation and Segregation (HACCP Principle 5 / BRC Clause 4.10.3.3)
Verify that all reject events are confirmed as containing a physical contaminant (or the reject cause is documented), that reject product is segregated and assessed before any release decision, and that the reject bin contents are inspected and recorded at each clearing event. Reject bin management is the most frequently audited element of metal detector CCP operation.
- Is each product rejection event confirmed by a trained person who physically inspects the rejected product for the metal contaminant (or confirms the rejection was caused by the test piece), and is the result (contaminant found, product-only rejection, test piece) recorded at the time of the rejection?
- Is the reject bin secured against unauthorized access (tamper-evident seal, locked bin, or witnessed clearing only), and is a reject bin clearing record completed each time the bin is emptied, recording the time, quantity of product, confirmation finding, and name of the person who cleared the bin?
- Is product that was rejected and found to contain metal contamination quarantined, investigated to identify the contamination source, and dispositioned by a qualified QA decision-maker before any release or rework decision?
Equipment Maintenance and Sensitivity Validation (BRC Issue 9 Clause 4.10 / GFSI Standards)
Verify that the metal detector is maintained per the manufacturer's schedule, that sensitivity is formally validated at product changeovers and after maintenance, and that calibrated test pieces are in good condition and within their replacement interval.
- Are test pieces inspected before each use for cracks, scratches, or surface contamination that could affect their conductivity, and are test pieces replaced when any physical damage is observed or on the manufacturer's recommended replacement schedule?
- Is the metal detector's sensitivity formally validated (not just verified with test pieces, but tested across the full range of products and pack styles run through the detector) at least annually, and when product type, product weight, or packaging format changes significantly?
CCP Corrective Action Documentation (HACCP Principle 5 / FDA FSMA 21 CFR 117.150)
Verify that all corrective actions for metal detector CCP failures are documented, include a scope definition (what product is affected), a root cause investigation, and a corrective action that prevents recurrence. HACCP Principle 5 requires that corrective actions be predetermined, but the specific circumstances of each failure must also be documented.
- Is there a documented corrective action procedure for metal detector CCP failures (failed verification test, confirmed metal contamination find, or system alarm) that specifies: production stop, product quarantine scope, notification chain, re-verification before restart, and CAPA documentation?
- Are all corrective action records retained for a minimum of 2 years (FDA FSMA requirement) or longer as required by GFSI certification body, accessible to HACCP auditors, and signed by the QA-designated decision-maker?
CCP Record Completeness and HACCP Plan Currency (HACCP Principle 6-7 / FDA FSMA 21 CFR 117.190)
Verify that the CCP monitoring records for this production run are complete, attributable, and retained, and that the HACCP plan governing this CCP is current and validated. FDA FSMA 21 CFR 117.165(b) requires HACCP records to be verified by a qualified individual.
- Are all metal detector CCP monitoring records for this production run complete (all required tests recorded), signed by the operator at the time of performance, and reviewed and co-signed by a supervisor or QA-designated reviewer at the end of the production run?
- Has the HACCP plan that designates the metal detector as a CCP been formally reviewed and revalidated within the past 12 months, or when there has been a change in product, process, equipment, or regulations that could affect the hazard analysis?
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Why Use This Food Metal Detection Checklist?
This food metal detection checklist helps food manufacturing teams maintain compliance and operational excellence. Designed for qa/production professionals, this checklist covers 16 critical inspection points across 6 sections. Recommended frequency: per shift/per production run.
Ensures compliance with HACCP, GFSI Standards, BRC/SQF/FSSC 22000. Regulatory-aligned for audit readiness and inspection documentation.
Frequently Asked Questions
What does the Food Metal Detection Checklist cover?
This checklist covers 16 inspection items across 6 sections: Pre-Production Equipment Setup and Calibration Verification (BRC Issue 9 Clause 4.10.3.1), In-Production Test Piece Verification (HACCP Principle 4 / BRC Clause 4.10.3.2), Reject Confirmation and Segregation (HACCP Principle 5 / BRC Clause 4.10.3.3), Equipment Maintenance and Sensitivity Validation (BRC Issue 9 Clause 4.10 / GFSI Standards), CCP Corrective Action Documentation (HACCP Principle 5 / FDA FSMA 21 CFR 117.150), CCP Record Completeness and HACCP Plan Currency (HACCP Principle 6-7 / FDA FSMA 21 CFR 117.190). It is designed for food manufacturing operations and compliance.
How often should this checklist be completed?
This checklist should be completed per shift/per production run. Each completion takes approximately 10-15 minutes.
Who should use this Food Metal Detection Checklist?
This checklist is designed for QA/Production professionals in the food manufacturing industry. It can be used for self-assessments, team audits, and regulatory compliance documentation.
Can I download this checklist as a PDF?
Yes, this checklist is available as a free PDF download. You can also use it digitally in the POPProbe mobile app for real-time data capture, photo documentation, and automatic reporting.