What is a co-packer?

Co-packer meaning

University food programs use co-packer for a company that makes and packages a product for your brand. Cornell's Food Venture Center and UF/IFAS both use it that way¹². Some commercial pages draw a narrower line, calling a co-packer a firm that only packages and a co-manufacturer a firm that makes the product³⁴. Founders use the two words for the same thing, so this directory treats them as one search.

What a co-packer does, step by step

Who does what in a typical launch, from the sources below:

1. You prepare the basics: a product specification sheet, a commercial formula, packaging specifications, a process flowchart and volume projections⁵².
2. For acidified or low-acid products, a process authority reviews the product and issues the scheduled process⁶.
3. You find and vet plants, usually under a confidentiality agreement, because you will share your formula and specifications².
4. The plant makes bench samples and a pilot run, which you pay for. One entry on Cornell's co-packer list requires at least an 8-hour production run for pilot projects¹.
5. The plant, as the commercial processor, registers with FDA and files the scheduled process for each product in each container size⁷; confirm who files for your product on the first call. A product with more than 3 percent raw or 2 percent cooked meat or poultry goes to a USDA-inspected plant instead⁸.
6. You agree a quote and a written agreement covering the price, quantity, specifications and timeline².
7. The plant runs production and its quality checks, and you sign off against written specifications such as pH, Brix and water activity⁹.
8. Any recipe change goes back to the process authority before the plant runs it¹⁰.

Co-packer, co-manufacturer or private label

Every plant here carries one or more of these labels, based on what its own website says:

• Co-manufacturer: makes finished product to your formula, and often sources the ingredients and packaging.
• Co-packer: packs or fills product that you supply, or that is made to your specification.
• Private label: sells its own existing formulas under your brand.
• Contract bottler: specializes in bottling or canning drinks.
• Commercial kitchen, shared kitchen or incubator: licensed space where you make the product yourself, sometimes with startup support.
• R&D and pilot lab: develops formulas and runs pilot or small production runs.

How the 245 plants in this directory describe themselves (many carry more than one label):

Private label: their recipe, your label

A private label plant starts from a formula it already owns and puts your brand on it, so the recipe began as theirs. When the formula is yours, a food and beverage law firm recommends that the brand keep ownership of its formulas, process specifications and artwork, while the plant keeps its pre-existing know-how and generic manufacturing methods⁹. Ask a private label plant what, if anything, you can own and take with you.

Turnkey or tolling

A second split affects your cash. A turnkey plant buys the ingredients and packaging. Under tolling you supply some or all of them and pay a set conversion charge, usually per unit or SKU¹¹. A pricing guide written for co-packers says tolling carries no materials markup, while turnkey co-packers mark materials up 10 to 20 percent for procurement, carrying cost and shrink¹².

Sources

1. Cornell Food Venture Center, Kitchens and Co-Packers (University)
2. UF/IFAS Extension FS380, Finding and Using a Co-packer (University)
3. Truvant, Co-packing vs co-manufacturing (Company; read through a search summary, the page itself was not opened in full)
4. Superior Pack Group, Co-packer vs co-manufacturer (Company; read through a search summary, the page itself was not opened in full)
5. PartnerSlate Academy, Co-Man Search Checklist (Company)
6. NC State Extension, Resources and Steps for Acidified Processors (University)
7. 21 CFR 108.25, acidified food registration and process filing (Cornell LII) (Government)
8. OFW Law, FDA vs USDA: Who Regulates What (2026) (Law firm)
9. Cummings Law, Legal Considerations for Co-Packing Agreements (Law firm)
10. Washington State Department of Agriculture, Industry Guidance: Acidified Foods (Government)
11. Genie AI, Tolling fee definition (Company; read through a search summary, the page itself was not opened in full)
12. Feed The Line, How to Price Co-Packing Services (2026) (Company)