What exactly is co-packing?
Co-packing (or contract packaging) is when a specialist packages, labels, bundles, kits, or builds displays for your products. It can touch primary packs (filling, bottling, pouching) or secondary packs (bundles, club packs, PDQs, pallet displays).
How is co-packing different from co-manufacturing?
Co-manufacturing makes the product. Co-packing finishes it for shelf or shipment. Some vendors do both, but they’re distinct scopes.
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Private label vs white label vs co-packing: what’s the difference?
- Private label – exclusive product for one retailer or brand, built to that buyer’s spec.
- White label – a generic base product sold to many brands with light customization.
- Co-packing – a service layer that packages any product (national brand, private label, white label) for retail or DTC.
Quick comparison
| Topic | Private Label | White Label | Co-Packing |
|---|---|---|---|
| Ownership of spec | Brand/retailer | Manufacturer, with limited tweaks | N/A (service) |
| Exclusivity | Yes | No | N/A |
| Primary use | Retailer brand building | Speed to market, low dev cost | Packaging speed, compliance, rework |
| Who buys it | Retailer/brand | Many retailers/brands | Any brand needing packs |
Where does co-packing plug into a 3PL?
Most mature 3PLs run value-added services: kitting, relabel, rework, bagging, bundling, display builds, and light assembly. The goal is fewer hand-offs, faster cycle time, and retail compliance under one roof.
What services do co-packers actually handle?
Kitting and collation. Labeling and over-labeling. Rework and rectification. Pouching and sachets. Cartoning and blister. Display builds and multipacks. Seasonal or promo packs.
Why brands use co-packing
- Launch speed without buying lines.
- Seasonal or surge projects.
- Retail or FBA compliance at scale.
- Rework instead of write-offs.
Market size: how big is this space?
Recent estimates peg global contract packaging in the high tens of billions, growing mid-single to high-single digit CAGR through 2030–2032. Examples: Grand View Research puts 2023 at about $69B with growth to ~20230; Fortune Business Insights projects ~$93B in 2024 with steady growth through 2032. Different methodologies, same direction.
Pricing models and what drives unit cost
How co-packers charge: per-unit, per-hour/line-time, or day rate. Expect setup/changeover fees. Storage and materials can be pass-through or managed by the vendor.
Cost drivers: labor content per unit, line speed, packaging format complexity, changeovers, QA sampling, scrap/rework, compliance tasks, and carton/pallet engineering for club or FBA.
Tip: ask for a “rate card + changeover matrix” and a yield-loss assumption up front.
A profitability math: a simple model
Short run with heavy handwork and two changeovers per day? Your unit cost rises fast.
Long run, automated format, shared materials, and one changeover per shift? Unit cost falls.
Back-of-napkin:
Unit cost = conversion cost per unit + materials + scrap + compliance tasks per unit + changeover amortization + rework + freight per unit. Keep it transparent.
Example, conversion cost per unit is line rate per hour divided by units per hour. If your line rate is $500/hr and output is 7,200 units/hr, conversion is about $0.07 per unit.
Changeovers and run length drive real dollars
Every changeover burns money and output. Two changeovers per day at 30 minutes each means one hour of lost time. At $500/hr, that adds about $0.01 per unit if you ship 50,000 units that day.
Cut changeover time, or combine SKUs. Shaving 30 minutes per day at that rate saves $500 per day, and can free capacity that creates revenue, not just savings.
What is OEE and why should I care?
OEE rolls up availability, performance, and quality into one number. A higher OEE means more units per hour and a lower conversion cost per unit.
If nameplate speed is 7,200 units per hour and you run at 50 percent, you get 3,600 units per hour. Moving to 60 percent gives 4,320 units per hour, a 20 percent lift that shows up immediately as savings.
How do co-packing formats cut parcel spend?
Right-size the pack and you cut dimensional weight. Ship in display-ready inners where possible. Design inserts that hold product snug without excess void fill. Small changes move the needle.
Simple decision guide: is this a co-pack project?
If it needs bundling, relabel, display, or club/DTC multipack and your team lacks capacity, call the co-packer. If it’s steady, high-volume, and runs clean on your equipment, keep it in-house.
What SLAs should you hold a co-packer to?
On-time to ship, first-pass yield, mislabel rate, ASN accuracy, and weekly OEE on the cell. Tie a small bonus and a small penalty to the same metrics.
Tie a small bonus and a small penalty to the same metrics. Publish the scorecard on a set day every week.
What data needs to flow between brand, 3PL/co-packer?
Send clean item masters with GTINs, case packs, dimensions, and weights. Include artwork versions, date code rules, and ASN fields that match retailer portals.
Add pallet patterns, routing guides, and rework rules with scrap ownership. One wrong digit in a quiet zone or case count can trigger days of relabel.
Compliance that can sink margins
Amazon FBA bagging and labeling
Bags with a five-inch opening or larger need printed suffocation warnings. Font sizes scale with bag dimensions. Barcode rules apply. Misses trigger re-bagging, delays, and fees.
Walmart OTIF and chargebacks
Walmart assesses 3% of COGS for OTIF failures. If your packaging plan hurts dwell, appointment hit rates, or case integrity, you pay for it. Co-pack accuracy and speed matter.
Club-store pallets and displays
Costco and Sam’s have exacting pallet and display specs: 48″×40″ footprints, height caps, stack strength, and shoppability rules. Design the pack and the pallet together or expect rework.
What to measure in a co-packing program
Use OEE on packaging cells: Availability × Performance × Quality. Track first-pass yield, changeover time, cases per minute, scrap, and rework. These reveal real unit cost.
Certifications and QA you’ll hear about
- SQF Module 13 for food-packaging manufacturers. Many brands request it from sites that handle food-contact packaging.
- BRCGS Packaging Materials Issue 7 with audits beginning April 28, 2025. Useful common language for hygiene and quality.
- FSMA co-manufacturing guidance clarifies supply-chain program responsibilities between brand owners and co-mans/co-packers in food. Align your quality agreement to it.
When co-packing is the wrong fit
- Tiny, irregular bursts where shipping to a vendor adds more cost than it saves.
- Packs that need proprietary equipment you already own and keep busy.
- Highly unstable artwork or specs that change weekly.
RFP and contracting checklist
- Scope: formats, SKUs, expected daily output, and changeover count.
- Pricing: rate card, setup fees, yield loss, scrap ownership, rework pricing.
- Materials: who buys films, cartons, labels, and how prices adjust.
- Compliance: FBA, Walmart, club rules cited in the SOW.
- Quality: sampling plan, CoAs, traceability, audit rights, CAPA, recall roles.
- Service: on-time shipment target, first-pass yield, and OEE reporting cadence.
- Exit: tooling/IP, data access, and transition plan.
Simple decision guide: which path should you take?
- Need displays, bundles, relabel, or club/DTC multipacks? Pick co-packing.
- Need new capacity or process to make the product? Pick co-manufacturing.
- Need speed to shelf with exclusivity at a retailer? Private label route.
- Need test-and-learn with minimal customization? White label.
Where Speed Commerce fits
We run kitting, relabel, rework, display builds, and compliance prep alongside storage and fulfillment. One campus. Fewer touches. Faster in-stock.
References
- Wikipedia, “Contract packager.”
- Grand View Research, “Contract Packaging Market Size.”
- Fortune Business Insights, “Contract Packaging Market Size, 2024–2032.”
- Amazon Seller Central, “Bagging requirements.”
- EcoEnclose, “Suffocation warnings: legal packaging requirements.”
- SupplierWiki, “Holding 3rd Parties Accountable for OTIF Fines.”
- Bay Cities, “Guide to Costco and Sam’s Club Pallet Displays.”
- Costco Pallet Policy (CHEP copy)
- Nulogy, “What services do contract packagers offer?” and “Third-party logistics.”
- OEE primers (Leanproduction.com; OEE.com).
- SQF Code, Module 13 and guidance.
- BRCGS Packaging Materials, Issue 7 Revision.
- FDA, FSMA co-manufacturing supply-chain guidance.
- Shopify, “Private label vs white label.”
