How to Vet a Private Label Functional Shot Co-Packer: A Due Diligence Checklist
Vetting a private label functional shot co-packer on paperwork alone is not enough. Claims about certification, timelines, and capacity need to be checked against documents, not sales pitches. This checklist walks procurement and quality teams through exactly what to ask for at each stage of due diligence, from certificate verification to reference calls, so the decision holds up after the contract is signed.
What Does Due Diligence Mean When Choosing a Private Label Co-Packer?
Due diligence for a private label functional shot co-packer means verifying certifications, production timelines, and supply chain structure with documents, not marketing claims. Procurement and quality teams evaluating a new supplier should request written evidence for every claim: certificate numbers, audit dates, and a documented timeline from recipe approval to first batch. A co-packer that cannot produce these documents on request is a signal to keep looking, regardless of how the sales conversation went.
For functional shots specifically, due diligence also covers regulatory exposure. Health claims linked to ginger, curcuma, or collagen fall under EU rules on nutrition and health claims [2], and an unauthorized claim on packaging becomes the ordering brand’s liability, not the co-packer’s.
Why Does Certification Verification Matter Before Signing a Co-Packing Contract?
Certification determines whether a co-packer is legally equipped to handle cross-border food and beverage trade. When a certificate is missing or doesn’t match the activity, the ordering brand carries the compliance risk, not the co-packer. Buyers should distinguish between certifications covering manufacturing and those covering brokering and trading of food and beverage products across borders. Chias Brothers Europe holds IFS Broker, a certification benchmarked by the Global Food Safety Initiative (GFSI) for companies trading and brokering food and beverages across borders, according to SGS [1].
A GFSI-benchmarked certification also affects retail access: many EU chains and pharmacy networks require it before listing a new supplier [3]. Ask whether the certificate’s scope matches the activity involved (manufacturing, brokering, or both), since the wrong scope offers no real protection.
How Do You Verify a Co-Packer’s IFS Broker Certificate?
Ask for three things: the certificate number, the date of the most recent audit, and the scope statement listing which activities the certificate covers. GFSI-benchmarked certifications like IFS Broker are issued by independent, accredited certification bodies, so the number should be checkable rather than taken on trust. A vague answer, or a certificate that has lapsed since the last audit, is a red flag worth raising before any contract is signed.
Request the audit summary, not just the certificate itself. It should list any non-conformities raised at the last audit and confirm whether they were closed. A co-packer willing to share this detail treats certification as an operating standard, not a formality.
What Timeline Should You Expect From Recipe Lock to First Production Batch?
Private label functional shot production commonly takes several months from a locked recipe to the first production batch when ingredients, packaging, and bottling come from separate vendors, and procurement teams should request a firm date rather than a general estimate. Some co-packers move faster: private label functional shot production at Chias Brothers Europe takes around eight weeks from recipe closure to first run, by keeping ingredient sourcing, bottling, and production under one roof instead of coordinating separate vendors for each stage.
Ask for the timeline broken into milestones (recipe approval, sample batch, quality control testing, first commercial run) rather than a single end date. This matters most against a fixed deadline, such as a seasonal listing window or a trade show launch.
Why Does It Matter How Many Suppliers Sit Behind Your Order?
Every additional supplier in a private label supply chain is another point where a delay, quality issue, or miscommunication can happen before the product reaches the shelf. When ingredients, packaging, and production sit with separate vendors, a single schedule change from any one of them can push back the whole order, and troubleshooting means contacting multiple parties to find where the problem started. A single-source setup gives the ordering brand one point of contact and one party accountable for the finished product.
A quick check exposes the structure: ask how many invoices will be issued for one order, and from how many companies. Three or four separate vendors for ingredients, packaging, and bottling means manual coordination if something goes wrong.
How Wide Should a Co-Packer’s Product Portfolio Be?
A narrow portfolio means a brand outgrows its co-packer the moment it wants a new shot format or category, and has to start a second supplier relationship from scratch. Ask for the current SKU count and category range before committing to one supplier for a full private label range. Chias Brothers Europe offers one of the broadest functional shot portfolios in Europe, with around 65 SKUs across categories (explore the full portfolio), plus guidance on building a coherent shelf from that range instead of picking formats in isolation.
Portfolio depth also means building a full shelf with one supplier. A co-packer spanning vitamin, herbal, and collagen-based shots lets a brand launch a coherent range without separate contracts, MOQs, and lead times per category.
How Do You Check a Co-Packer’s Track Record?
Ask for two numbers: how long the company has been producing private label functional shots, and how many distinct SKUs it has taken to market. Chias Brothers Europe has 10 years of private label production experience and has brought more than 200 SKUs to market for its clients. That history is something procurement teams can verify through reference calls rather than take on faith. This checklist applies equally to white label partnerships, which follow a different process than a fully custom private label recipe.
A track record should be checkable: ask to speak with an existing private label client rather than relying on a case study alone. If a co-packer won’t connect a reference, or only points to testimonials, that’s worth noting before signing a production contract.
Due Diligence Checklist
| Due Diligence Area | What to Verify | Red Flag |
|---|---|---|
| Certification | Certificate number, GFSI benchmark, latest audit date and scope | No certificate number provided, or scope doesn’t match your product category |
| Production timeline | Written date from recipe lock to first batch | Only a range given, no firm commitment |
| Supply chain structure | Number of vendors involved (ingredients, packaging, bottling, production) | Co-packer can’t name who handles each stage |
| Portfolio depth | Current SKU count and category range | Portfolio limited to one shot category |
| Track record | Years in private label production, SKUs launched, client references | No verifiable client references offered |
| MOQ & flexibility | Minimum order quantity per SKU and format, in writing | MOQ only quoted verbally or “case by case” with no number |
How Chias Brothers Europe scores on this checklist?
FAQ
What certifications should a private label functional shot co-packer hold?
At minimum, verify a manufacturing certification such as IFS Food and, if the co-packer also sources or trades ingredients across borders, a brokering certification such as IFS Broker, benchmarked by GFSI.
How long does private label functional shot production typically take from recipe to first batch?
Timelines vary widely depending on how many separate vendors are involved in ingredients, packaging, and production; ask any co-packer for a firm, written date rather than accepting a general estimate.
What is the minimum order quantity (MOQ) for private label functional shots?
MOQ varies by co-packer, SKU, and packaging format. Request the MOQ in writing per format before signing, and treat a verbal-only or “case by case” answer with no number as a point to clarify further.
Is single-source production better than working with multiple suppliers?
Single-source production reduces the number of parties involved in ingredient sourcing, packaging, and bottling, which lowers the risk of delays and gives the ordering brand one point of contact for the whole order.
How wide should a co-packer’s SKU portfolio be before I commit to one supplier?
Wide enough to cover the categories the brand plans to launch over the next one to two years, so a new format doesn’t require starting a second supplier relationship.
What documents should I request during due diligence?
The certificate number and audit date for any certification claimed, a written production timeline, the supplier structure behind the order, and, where possible, client references confirming the co-packer’s track record.
Sources
1. SGS. IFS Broker – Comprehensive IFS Broker Audit and Certification Service. https://www.sgs.com/en-ch/services/ifs-broker (accessed: 30.09.2026)
2. European Parliament and Council of the European Union. Regulation (EC) No 1924/2006 on Nutrition and Health Claims Made on Foods. https://eur-lex.europa.eu/eli/reg/2006/1924/oj/?locale=en (accessed: 30.09.2026)
3. Global Food Safety Initiative (GFSI). Certification – How to Implement. https://mygfsi.com/how-to-implement/certification/ (accessed: 30.09.2026)
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