AI for co-packers, tested on customer specs and lots your team already closed out.

The work is defined by a contract. FDA describes co-manufacturing as an arrangement in which one party, the brand owner, has a second party, the co-manufacturer, make the food on its behalf. You run the line, but the formula, the specification and the label start as the customer's documents, in the customer's format. Every new item and every lot means rewriting someone else's paperwork into your own records, and then back into theirs.

Supplier approval sits between you and the brand. FDA's preventive controls rule says the receiving facility must approve its suppliers, while letting another entity run supplier verification if the facility reviews and documents that work. In 2017 industry told FDA that brand owners' contracts with their suppliers would have to be rewritten before supplier audits could be shared with a co-manufacturer. FDA said it would hold off on enforcing those steps for co-manufacturers, extended that in November 2019, and kept it in its March 2022 guidance where the brand owner does the approval and verification, the co-manufacturer describes them in its food safety plan and does whatever the brand owner did not. Who approves each ingredient's supplier is a question every new spec has to settle.

Some items leave your dock unfinished on purpose. When you make an ingredient or an intermediate your customer will process further to control a hazard, the rule lets you rely on that customer if the documents traveling with the food say it is "not processed to control" the named hazard and you get the customer's written assurance every year. That assurance has to carry an effective date and the printed names and signatures of authorized officials. A spec that moves a hazard control from your plant to theirs changes paperwork on both sides of the contract.

The answer key is already in your files. Records under the rule stay at the plant for at least two years after they are made. Most may sit elsewhere only if they can be brought back on site within 24 hours, and the food safety plan stays on site. So each item you already brought into production, and each lot you already released, shows exactly what a draft has to match: the spec your team wrote, the label review it signed, the COA that went out.

The trade has its own association. The Contract Packaging Association, founded in 1992, now calls itself the Association for Contract Packagers and Manufacturers and describes its field as the co-man and co-pack industry and the brands and retailers it serves; in 2018 it entered a partnership with PMMI for administrative, technical and marketing support. Buyers use both names, co-packer and co-manufacturer, and search for the difference between them. The two jobs here fit a plant that only packs and one that cooks, blends and fills.

One limit covers every job. The proof of concept never approves a formula, a label, a specification or a lot. It never decides whether a food is safe, compliant or allergen-free, never signs a certificate or a questionnaire, and never contacts a customer, a supplier or an auditor. It works only on copies, and a qualified person on your team decides and signs.