COA Document Management: How Food Manufacturers Track and Verify Certificates of Analysis

The formal collection, review and archiving of Certificates of Analysis to verify that raw materials received are within safe and quality parameters is termed COA document management. The Certificate of Analysis (COA) is a laboratory confirmation from the supplier that a specific batch of material has been tested and is of the promised chemical, physical and microbiological quality. The management of these documents is vital to food safety, a missing or incorrect COA can stall production lines or result in major audit non conformance in the food and beverage sector.

With automated COA document management solutions from Document Compliance Network (DCN), food manufacturers in the United States can transition from paper-chasing to a “Calm, Confident & Closed” audit status. DCN simplifies the collection and management of COA by eliminating the need to manually file COA and automating lot number and test result verification at the facility to keep you compliant with SQF, BRCGS, and FSMA requirements. 

What Is a COA and Why Does It Matter?

A Certificate of Analysis (COA) is a legal and technical record that provides evidence of a material’s compliance with its specification. It is distinct from other common compliance documents, and understanding these differences is vital for accurate recordkeeping.

Document Type	Purpose	Key Data Included
COA (Certificate of Analysis)	Verifies actual lab results for a specific lot.	Test results, lot numbers, spec limits.
COC (Certificate of Conformance)	A statement that the product meets standards.	General guarantee, no specific test data.
COI (Certificate of Insurance)	Proof of liability insurance coverage.	Policy limits, expiration dates.

Why do suppliers issue a COA with every raw material lot

A COA is given by the supplier with each lot of raw material to give the manufacturer the information they need to produce that material. The COA represents a “passport” for this batch of ingredients because the biological or chemical properties of the ingredients can vary from batch to batch, depending on the source of the ingredients, such as protein in flour and moisture in spices. Document Compliance Network (DCN) guarantees that these passports are collected and verified before the ingredients are even unloaded at the facility, thereby avoiding the introduction of out-of-spec ingredients. 

What Should Every COA Include?

The information in a COA should include certain items that can be directly related to the physical shipment for SQF or BRCGS audits.

Some of the important areas to look at:

• Supplier Information – Name and address of the manufacturer’s facility.
• Product Name & Code: This should correspond to the purchase order and specification.
• Lot/Batch Number: The number that corresponds to the physical label on the pallets.
• Date of Manufacture/Testing: To assure material is within its shelf life.
• Test Results vs. Specifications: Data as numbers or words in relation to the “Pass/Fail” criteria.
• Authorized Signature: A qualified person’s signature certifying that the results have been reviewed and approved. 

Red flags that signal a COA doesn’t match your incoming lot

Common red flags include lot numbers that do not match the pallet labels, missing signatures, or test results that are exactly the same across multiple different lots (which may indicate “dry-labbing” or fraudulent reporting). Document Compliance Network (DCN) uses automated verification tools to flag these inconsistencies, alert the QA manager, and prevent the material from being used until a corrected document is provided.

Do You Need a COA for Every Raw Material?

The requirement for a COA is generally determined by the risk assessment of the raw material and the specific requirements of food safety schemes like SQF and BRCGS.

SQF and BRCGS expectations for COA documentation

Under SQF Edition 9, the site must have a program to verify the quality and safety of all incoming materials. For high-risk ingredients, such as raw proteins, dairy, or complex premixes, a COA is almost always required for every lot. BRCGS Global Standard for Food Safety also emphasizes the need for “evidence of conformity,” where the COA serves as the primary verification tool during an audit to prove that the supplier’s process is under control.

FSMA recordkeeping requirements tied to COAs

The Food Safety Modernization Act (FSMA) requires facilities to maintain records of supplier verification activities. If your Food Safety Plan identifies a hazard that is controlled by the supplier (such as pathogen reduction in nuts or heavy metal testing in juices), the COA becomes a “Preventive Control” record. Document Compliance Network (DCN) automates this FSMA-mandated recordkeeping, ensuring that every required COA is archived and searchable by lot number for at least two years.

How to Manage COAs from Multiple Suppliers – Manual Process

Manual COA management is a labor-intensive workflow that often begins at the receiving dock.

Building a COA intake and review workflow

A manual workflow typically involves the receiving clerk checking for a paper COA attached to the packing slip. If it is missing, they must notify the QA department, who then emails the supplier to request a PDF. Once received, the QA manager must manually compare the results on the PDF against the internal specification sheet. This “hands-on” approach is slow and prone to human error, especially when dealing with dozens of deliveries per day.

Where manual tracking breaks down

Manual tracking breaks down when suppliers use inconsistent formats—some send COAs as body text in an email, others as PDFs, and some only provide them via a password-protected portal. This inconsistency leads to “missing lot” gaps where a material is used in production before the COA is actually reviewed. Document Compliance Network (DCN) solves this by standardizing the intake process, so every COA is captured in the same digital format regardless of how the supplier sends it.

How to Automate COA Collection and Verification

Automation transforms COA document management from a reactive “chase” into a proactive, “hands-off” system.

Automated COA matching against lot numbers

Document Compliance Network (DCN) utilizes advanced data capture to read incoming COAs and match them directly to the lot numbers in your receiving logs. This ensures that every shipment has a corresponding document without a human having to manually file the PDF. If a shipment arrives and the system does not detect a matching COA, an alert is triggered immediately.

Email-based supplier submission without portals

DCN’s core differentiator is its “no-portal” philosophy. Suppliers do not need to remember a username or password to submit their COAs. They simply respond to an automated email request or send the document to a dedicated intake address. This ease of use leads to significantly higher supplier compliance rates compared to traditional software portals.

Flagging out-of-spec results automatically

The most critical feature of automated COA management is the ability to flag out-of-spec (OOS) results. DCN can be programmed with your specific ingredient limits; if a supplier uploads a COA where a pathogen count or chemical level exceeds your threshold, the system sends an urgent notification to the QA team. This prevents “silent” safety failures where a document is filed but never actually read.

What Happens When a COA Is Missing or Wrong?

A missing or incorrect COA is more than an administrative error; it is a production bottleneck.

Production delays from holding material

Most food safety programs require that material be placed on “QA Hold” until a valid COA is reviewed. If a supplier fails to send the document on time, raw materials sit on the dock, potentially delaying the entire production schedule. DCN minimizes these delays by requesting the COA the moment the purchase order is issued or the shipment is scheduled, ensuring the document arrives before the truck does.

Audit findings tied to incomplete COA records

During a GFSI audit, one of the most common “vertical audit” steps is for the auditor to pick a finished product lot and trace it back to the raw material COAs. If you cannot produce the COA for a specific ingredient lot used in that batch, it is an automatic non-conformance. Document Compliance Network (DCN) provides a “Traceability Dashboard” that allows you to pull all associated COAs for a finished lot in seconds, demonstrating total control to the auditor.

Manual vs. Automated COA Tracking – The Real Cost

The cost of manual COA management is often hidden in the “soft costs” of administrative labor and production downtime.

Time spent per lot on manual COA review

Internal data from Document Compliance Network (DCN) suggests that QA teams spend an average of 15 to 20 minutes per lot on manual COA activities; this includes requesting the document, verifying the data, and filing the record. For a facility receiving 50 lots per week, this equates to over 60 hours of labor per month. Automation can reduce this time by 90%, allowing the QA team to focus on high-value safety tasks.

ROI of automated verification

The ROI of automated COA document management is realized through faster material release times and the elimination of audit fines. By reducing the “time-to-release,” facilities can maintain leaner inventories and reduce the risk of spoilage for temperature-sensitive ingredients. DCN users often report that the system pays for itself within the first six months through labor savings alone.

COA Review Best Practices

To ensure your COA program is audit-ready, implement these standardized review practices.

QA checklist: What to verify before releasing material

• Lot Correlation: Does the lot number on the COA match the physical container?
• Completeness: Are all tests required by your specification present on the COA?
• Methodology: Does the supplier use approved testing methods (e.g., AOAC or ISO standards)?
• Trends: Are the results consistently near the upper limit? (DCN can help track these trends over time to identify failing supplier processes.

Centralizing COA records for full lot traceability

All COAs should be stored in a centralized, cloud-based system rather than on individual hard drives or in physical binders. This ensures that if the facility needs to perform a mock recall, the necessary documentation is accessible to the entire team, not just one person. DCN provides this centralized repository, with powerful search tools that allow you to filter by supplier, ingredient, or date range.

FAQs

Q1. What’s the difference between a COA and a COC?

Ans: A COA (Certificate of Analysis) will have actual laboratory test results for a batch, while a COC ( Certificate of Conformance) will be a general statement the product complies with the requirements without giving specific data points. COAs are recommended for ingredients that have a higher risk.

Q2. Does each lot of raw material need a COA?

Ans: This will be based on the risk assessment of your facility. The extent of flexibility offered by SQF and BRCGS varies, but most food safety plans call for a COA for any ingredient that may pose a serious biological or chemical risk.

Q3. How much time should be allowed for COA records?

Ans: Most GFSI schemes and FSMA require records to be maintained for two years. Best practice is to store them for the shelf life of the final product plus one year in case of any delay in recall or legal action.

Q4. If results are within spec, can the COA be rejected due to the wrong format?

Ans: Yes. Even if the lab results are 100 percent correct, if the COA does not contain important traceability data, such as a lot number or an authorized signature, then it should be rejected.

Q5. How is COA traceability to finished product lot checked?

Ans: Auditors conduct a “trace-back. They choose a finished product, review the batch record to determine which raw material lots were used and then request COAs for those raw material lots. Audit failures occur when there is a lack of this chain.

Apply a strategy to reduce paperwork and increase sales on your COA workflow.

Managing thousands of Certificates of Analysis shouldn’t be a full-time job for your QA team. Document Compliance Network (DCN) is an automation and verification solution that helps you maintain your supply chain. Our collection system is done through email and we use lot matching software that automatically aligns all ingredients in your facility with a verified, audit ready COA. Call Document Compliance Network (DCN) today to discover how we can help you get a release faster, safer and with fewer hassles.

Schedule a Demo with Document Compliance Network (DCN) Today!