The CPG Co-Manufacturer Operating Playbook: What Happens After You Sign the Contract
Jeff Church's playbook for managing your co-manufacturer day-to-day — protecting IP, maintaining quality, and staying at the top of their priority list.
There's a moment I want to describe. Our first delivery to a Whole Foods distribution center, maybe six months after Suja launched. I'm driving a 28-foot truck through a loading dock full of 53-foot semis operated by people who actually know what they're doing. We unload the pallets. Or I try to.
I get behind the controls of a forklift. Zero operational experience behind it. And I slice directly into a pallet of beet juice.
Red juice everywhere. On the floor, on the dock, on me. The DC workers are staring. Embarrassing doesn't begin to cover it.
Here's the thing I've thought about since. We had co-manufacturing agreements in place. We had purchase orders. We had retailer commitments. On paper, we had a supply chain. What we didn't have was any actual experience managing one.
The contract is not the relationship. It's just the starting pistol.
I've run co-manufacturer relationships across seven manufacturing locations over seven years at one of the fastest-growing CPG brands in American history. I've gotten this right. I've also gotten it very, very wrong. What follows is the playbook I wish someone had handed me before that beet juice moment.
Your Co-Man Has Twenty Other Customers
Start here. When you sign, you feel like the priority. You're fresh, you're exciting, maybe you're bringing volume they needed. That honeymoon lasts about 90 days. After that, you're one of twenty relationships competing for floor time, machine maintenance, QA bandwidth, and the attention of the one plant manager who actually knows how to solve problems.
Your job is to be worth prioritizing. Consistently. Every week of the year.
Some founders treat the co-man relationship like a vending machine. You insert a purchase order and product comes out. That mindset gets you treated like a vending machine customer. The founders who actually win at this are the ones who invest in the operating relationship the same way they invest in retail buyer relationships. It's not glamorous. It's not fundable. But it's the thing that keeps product on the shelf.
Build a Weekly Operating Rhythm
Not monthly check-ins. Weekly. A standing call with your co-man's production lead. Thirty minutes. Cover the current production schedule, any quality holds from the last run, supply issues on their end, anything you need to flag from yours.
This sounds like overhead for a small brand. It isn't. It's how you find out about problems before they become your problem at the distribution center.
Two more things that matter more than most founders realize:
Give the co-man one point of contact on your side. One phone number, one name. The more friction they have to navigate to get an answer from you, the lower you slide on their internal priority list. Don't make them chase your co-founder, then your ops coordinator, then you. Give them a single owner and protect that relationship.
Show up in person. At minimum twice a year, walk the floor. See how your product is being handled. Meet the production crew who actually runs your line. Have a meal with the plant manager. The brands that are real people to the operations team get treated differently than the brands that are just a PO number in a system. This isn't soft stuff. It's strategic.
Own Your IP Like Your Life Depends on It
The co-man is producing your product. That doesn't mean they own your formula or your specs. But if you've never been explicit about it... there's a lot of room for misalignment.
Before anything else: confirm in writing that your formula, your spec sheets, and your QA standards belong to you. Not just "on file" with the co-man. Yours. Portable. Removable if this relationship ever ends on short notice.
Why does this matter so much? Because some co-man relationships end suddenly. Equipment fails. A facility gets sold. The economics stop working for one side or both. The day you need to move, you need to be able to hand your formula to a new manufacturer on Monday morning. If you can't, you're not running a business. You're dependent on a vendor who may or may not choose to cooperate when things get difficult.
Quality holds are yours to define too. What's the documented procedure when a batch fails your spec? Who has the authority to hold product? How quickly does your team get notified? "We found out when the retailer called" is not an acceptable answer. Build a written hold-and-notify protocol before there's an issue to report. The co-man won't build it for you. It's not their liability... it's yours.
I learned the value of QA protocols the hard way. Early at Suja, a Whole Foods buyer asked if we had a HACCP plan. I stared at them like they were speaking another language. Within a week I was in an all-day food safety course learning how many ways a beverage company can accidentally hurt people. "Ignorance is expensive in any business, but especially in CPG." That one was paid for in equity, dilution, and sleepless nights.
Don't be me on that one.
The Margin Conversation Nobody Wants to Have
Your co-man pricing feels reasonable at year one. Eighteen months later, a commodity spike shows up in a letter with six weeks of notice before your next run. Or you've tripled your volume and you're still paying the same rate.
Neither of these conversations gets easier if you avoid them.
Volume-based pricing tiers should be in writing from the start. As you scale, your costs should come down. If you've grown volume significantly and the rate hasn't moved, start the conversation: "We've grown our production X percent with you over the last Y months. We'd like to schedule a pricing review." You don't need to threaten. The math makes the argument.
CPG is a "Penny Profit" business. The pennies get decided on the manufacturing floor. Your gross margin isn't just a function of your ingredient cost and your retail price. It's also a function of whether your co-man is running your line efficiently, absorbing reasonable overhead, and passing through the scale savings they're capturing because of your growth.
"Gross margin determines destiny." And you can't manage what you haven't negotiated.
On the other side: don't over-forecast. Nothing destroys a co-man relationship faster than a volume projection that evaporates before the production slot is filled. Under-promise on forecasts and over-deliver on orders. They'll trust you more, not less.
Signs Your Co-Man Is Getting Into Trouble
Most co-man problems are slow-moving. By the time they become acute, you're already deep in inventory risk or missing retailer delivery windows. Watch for these:
Yield issues that weren't there six months ago. Sudden turnover at the plant manager or QA supervisor level. Lead times stretching with vague explanations. Billing irregularities: extra run fees, unplanned line charges. The co-man asking about your upcoming volume... "just to understand the picture."
That last one is often a cash-flow signal. They're trying to understand how dependent you are on them before they make a difficult decision.
The Rule of Twos applies here like everywhere else. If you ever have to unwind a co-man relationship under pressure, it will take twice as long and cost twice as much as you estimated. The time to build a backup option is before you need one. You don't have to be actively negotiating with alternatives. But you need to know who they are and what a transition would require. That due diligence costs you nothing until you need it.
When In-House Manufacturing Becomes the Answer
The full make-vs.-buy framework is a longer conversation, and we've covered it separately. But the short signal is this: when you're dependent on a single co-man for the majority of your production and you have no real alternative, someone else's operational problems have become an existential risk to your business.
At Suja, we scaled across seven manufacturing locations over five years because our product... cold-pressed, HPP-processed, highly perishable... couldn't be made at scale by anyone else we could find. We launched with a 24-day shelf life. We eventually got to over 100 days. That constraint was also our most important competitive advantage once we solved it, because very few brands could follow us there.
The question to keep asking isn't "should I own manufacturing?" The question is: "At what point does my co-man relationship limit my growth more than it enables it?" Answer that honestly every six months.
The contract is the easy part. The beet juice on the loading dock... that was the beginning of a very long education in what operations actually requires. I'd rather you skip a few of those classes.
"Dream boldly. Plan soberly." That applies to your co-man relationship too. Build it like a partnership, manage it like a business, and protect your IP like the asset it is.
If you want the full operating playbook for building a CPG brand that actually scales, the CPG Founders MBA gives you the frameworks, the numbers, and the hard-won lessons from someone who's lived it. And if you're 90 days from a critical decision on your operations, supply chain, or manufacturing path, the 90-Day Breakthrough program is built for exactly that moment.
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