How to Negotiate a Co-Packer Manufacturing Agreement
A Master Manufacturing Agreement (MMA) with a co-packer is the most important legal document your food brand will sign. A bad contract can trap you in a relationship with an underperforming manufacturer, bleed your margins through hidden fees, or even cost you the ownership of your own recipe. Here is what you must negotiate before signing.
1. The Shrinkage (Yield Loss) Allowance
Manufacturing is messy; some ingredient waste is inevitable. The contract will specify a "shrinkage allowance". the percentage of your ingredients the co-packer is allowed to waste without financial penalty. If the allowance is 3%, and they waste 5%, they must reimburse you for the 2% difference.
The Negotiation: Co-packers will push for a high allowance (5-8%) to protect themselves. You must push for a lower allowance (2-4%) based on industry standards for your product category. Crucially, ensure the contract states that they must reimburse you at your fully landed cost of the ingredients, not just the invoice price.
2. Intellectual Property (IP) Ownership
If you bring a recipe to a co-packer, and they tweak the formula slightly to make it run better on their machines, who owns the new formula?
The Negotiation: Your contract must explicitly state that you own the formula, including any modifications, improvements, or scaling adjustments made by the co-packer. This is known as a "work for hire" clause. If you do not secure this, the co-packer can hold your recipe hostage if you try to move to a new facility.
3. Minimum Run Sizes and True-Up Fees
Co-packers make money by running their machines continuously. They will require a minimum order quantity (MOQ) per production run.
The Negotiation: Ensure you understand what happens if you cannot meet the MOQ. Instead of being forced to over-produce inventory that might expire, negotiate a "minimum run fee" or "true-up fee." This allows you to pay a flat penalty to run a smaller batch, which is often cheaper than writing off expired finished goods.
4. Termination and Transition Assistance
Eventually, you will outgrow your co-packer. When you terminate the agreement, you need their cooperation to transition your specialized equipment, packaging inventory, and production knowledge to the new facility.
The Negotiation: Include a "transition assistance" clause requiring them to cooperate with the transfer of your materials and IP for a period of 60 days post-termination, provided your invoices are paid in full.
Enforcing the Contract
A strong contract is useless if you don't enforce it. If you agree to a 3% shrinkage allowance, but you manage your production in a spreadsheet and never actually calculate the yield loss on a run, the co-packer will waste 6% and you will never know. You need operations software to track every pound of ingredients consumed and automatically flag runs that exceed your negotiated allowance.
Frequently Asked Questions
What is a tolling agreement vs a turnkey agreement?
In a tolling agreement, you buy and own the ingredients, and the co-packer just charges a fee for labor and equipment. In a turnkey agreement, the co-packer buys the ingredients, manufactures the product, and sells you the finished good at a markup.
Can I audit my co-packer's facility?
Yes, your contract should include an audit right. You should be allowed to inspect their facility, review their food safety records, and observe a production run of your product, usually with reasonable advance notice.
Who pays for specialized equipment?
If your product requires a specific piece of equipment the co-packer doesn't own (like a unique die-cut mold), you will usually have to pay for it. The contract must explicitly state that you own that equipment and can take it with you if you leave.
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Apply as Design Partner →Quality assurance, product specs, and shelf life guarantees
Put exact pass fail criteria in the MMA, not vague promises. List spec sheets for every SKU with target weight, fill tolerance, ingredient tolerances, micro limits, and sensory attributes. Specify certificate of analysis requirements with each shipment and test frequency. For example: COA for every lot for critical control points; microbiological testing every lot for ready to eat items; allergen swab results weekly. Use measurable acceptance metrics such as maximum 2500 PPM foreign material, maximum 0.5% weight variance, or AQL 2.5 for visual defects. Tie payment holdbacks or rejection rights to those metrics.
Define shelf life expectations concretely. Include initial shelf life, required remaining shelf life at delivery (for example 70 percent of starting shelf life), and shrinkage allowances for transit. Require accelerated or real time shelf life data for new SKUs with acceptance criteria and a minimum of three pilot production runs before full production. Spell out remedies: rework, credit, or replacement timelines and who pays freight. Without these specifics you will be stuck negotiating quality after failures occur.
Pricing structure, cost escalation, and transparency
Break price into fixed and variable components and require line item detail. Example structure: base manufacturing fee per unit, packaging fee per unit, per-run setup fee, and raw material pass through. For pass throughs tie increases to verifiable indexes or supplier invoices. Use a formula such as New Price = Base Price × (Index_current / Index_base) for commodity-driven costs. Define Index_base and the publication source and update frequency. Cap annual escalations to a reasonable band, for example 4 percent above CPI, or require mutual agreement beyond that cap.
Include audit rights for cost verification, for example supplier invoices for pass throughs available on 30 days notice and redacted for confidential margins. Set notice periods for price changes no less than 60 days. Put firm definitions for what constitutes an allowable pass through, and require a monthly or quarterly statement from the co-packer showing unit economics for your SKUs so you can spot margin erosion before it becomes a surprise.
Change control, new SKU introductions, and NPI timelines
Agree a formal change control process that covers recipe tweaks, ingredient substitutions, packaging changes, and process parameter adjustments. Require a written change request form, impact analysis, and a decision window of 10 business days. For new product introductions require stages and timelines: lab development, pilot run, process validation, and commercial release. Typical timelines to include are pilot run within 30 days of approval, three validation runs within 60 days, and commercial release after successful verification.
Put retool and setup fees on a schedule tied to the complexity of the change. Example: simple pack change tool-up fee $500, moderate change $2,500, major process retooling $10,000 plus demonstrated yield guarantees. Require the co-packer to log change impacts on yield and unit cost within 30 days and reimburse or credit you for failures to meet pre-agreed validation metrics. This prevents small unilateral changes from shifting cost or quality risk back to your brand.
Audits, traceability, recalls, and corrective action timelines
Include explicit audit rights: annual scheduled audit plus the ability for you to audit after any major nonconformance. Require lot level traceability from raw materials to finished goods with records retained for at least two years beyond shelf life. Specify traceability expectations such as the time to identify lots affected by an incident no longer than 72 hours and documentation of all upstream suppliers for each ingredient.
Define corrective action timelines as enforceable SLA items: containment within 48 hours, root cause analysis within 10 business days, corrective action plan within 15 business days, and verification of effectiveness within 90 days. Put recall cost allocation in the contract, or require minimum product liability and recall insurance limits, for example $2 million product liability and a separate recall policy. If the co-packer is responsible for the root cause they should bear recall costs, not the brand.