When a co-packer makes your product, the question is always the same: who needs the certification, you or them? The answer is both, in different ways — because certification follows the production, while the symbol on the label belongs to the brand.
Getting the structure right at the start avoids the most common and most avoidable problem in contract manufacturing: a brand that has paid for certification and cannot use it because the plant is not covered.
The basic structure
| The facility | The brand owner | |
|---|---|---|
| What is required | Supervision of the actual production — ingredients on site, equipment, the line, label control | Certification of the specific products, listed on a letter of certification |
| What they hold | Facility certification covering the production they run | The consumer-facing certification and the right to use the symbol |
| What happens if it is missing | No certification is possible, no matter what the brand does | The plant may be certified, but your product is not covered by it |
The asymmetry matters. A brand cannot certify around an uncertified facility — there is nothing to supervise. But a certified facility does not automatically cover your product either, because certification attaches to specific products with specific formulations.
If you are a brand owner
Ask before you sign. Whether a prospective co-packer is kosher certified, and by whom, belongs in your initial qualification alongside food safety and capacity. It is much easier to select a certified facility than to persuade an uncertified one.
The three situations you will meet:
- Your co-packer is already certified. The straightforward case. We coordinate with their certification to cover your products, and much of the facility work is already done.
- Your co-packer is certified by a different agency. Common, and workable. Facility supervision and product certification can sit with different bodies, and agencies coordinate on this routinely. Tell us early so we can arrange it rather than discover it.
- Your co-packer is not certified. Then that is the conversation to have first. Many are willing — certification makes them eligible for every other certified brand too, which is a direct commercial benefit to them. Some are not, and then you have a decision to make about the relationship.
Watch the multi-facility case. If your product runs at two or three co-packers, each one needs covering. A letter naming one facility does not cover product made at another, and a buyer who checks will notice.
If you run a co-packing facility
Certification is straightforwardly a commercial asset for you, and probably under-valued.
It makes you eligible. Brands with kosher certification cannot use you if you are not certified. You are being excluded from RFPs you never see, and nobody tells you why.
It is a differentiator in a price-driven category. Contract manufacturing competes hard on cost. Certification is a capability rather than a discount — it moves you out of a pure price comparison.
Brands will pay to avoid switching. Requalifying a co-packer is expensive and slow for a brand. Being the certified option makes you stickier.
What certification asks of you: an ingredient review covering what you run, a facility inspection, ongoing supervision, and label control — which in a multi-brand plant is the significant one. Kosher-marked packaging for one brand must not be able to reach an uncertified run for another. This is the highest-probability failure mode in a co-packing operation and the thing an inspector will look at hardest.
Who pays for what
A reasonable question with no single industry answer. In practice:
- The facility usually carries its own facility certification, as a cost of being an eligible supplier.
- The brand usually carries its own product certification and the letter its customers rely on.
- Where a brand needs a facility to certify specifically for them, the commercial arrangement is negotiated between the two — sometimes the brand contributes, sometimes the facility absorbs it because other brands will benefit.
We will map the structure and tell both parties what each side needs, so the negotiation is about money rather than about who is responsible for what.
Things that go wrong
- Production moves to a second facility for capacity and nobody updates the certification. Product ships uncovered.
- The co-packer substitutes an ingredient for supply reasons without telling the brand. This is the most common finding in contract manufacturing.
- Kosher packaging runs on a non-certified product. Rare but serious.
- The facility’s certification lapses and the brand finds out from a customer.
- The brand assumes a certified facility covers everything it makes. It does not — it covers what is listed.
Every one of these is prevented by the same habit: tell your certifier when anything changes, on either side of the relationship.
Whether you own the brand or run the plant, we will map the right structure before you commit. Get a free quote, or read the certification process and what the letter covers.