The production route
How does contract filling work?
The useful starting point is not the machine; it is the complete pack you need at the end. Product behaviour, dose, container, closure, label, code, batch pattern and final presentation can all change the production method.
- 01
Define the brief
Set out the product, pack, volume, timing and required finished result.
- 02
Review feasibility
Assess the product, components, tooling, filling method, cleaning and checks.
- 03
Approve references
Agree the product and component specifications, artwork, codes and samples.
- 04
Schedule materials
Confirm that product, containers, closures, labels and cartons will arrive in time.
- 05
Fill, check and pack
Run the defined process and prepare finished stock for the agreed next step.
Choose the relevant route
Which contract filling service do you need?
Plain-English service map
What is the difference between contract filling, contract packing, co-packing and bottling?
The terms overlap, but the most useful distinction is the production task you need completed. Use this map when describing your project to potential suppliers.
Contract filling
Dosing an agreed bulk liquid, paste, powder or dry product into a suitable primary pack.
Explore liquid filling →Contract bottling
A bottle-specific filling route that may also include closing, labelling, coding, inspection and case packing.
Explore contract bottling →Contract packing / co-packing
Outsourced packing, assembly or finishing work such as kitting, cartoning, collation and final packing.
Explore contract packing →Hand packing and rework
Manual assembly, relabelling, repacking or remedial work completed to an approved finished-pack instruction.
Explore hand packing →Scope note: Contract filling does not automatically include product manufacture, blending, mixing or milling. List those operations separately so a supplier can confirm whether they are available and suitable.
Budget and volume
Separate the costs that change with quantity from those that do not
A useful contract-filling quotation identifies setup and approval work separately from the price of processing each accepted pack. The same unit rate can lead to different total costs if proposals treat cleaning, components or final packing differently.
Setup and one-off work
Identify trials, tooling, line setup, artwork or code preparation and initial approval activity. Confirm which costs repeat for every batch, which recur only after a format change and which belong to the first project only.
Production and finishing
List filling, closure application, labelling, coding, inspection and final packing separately where the scope could differ. Define whether the quoted quantity means product received, units started or acceptable finished packs released. Include any agreed handling of non-conforming components and part-completed work.
A simple comparison example
For illustration only, a £300 batch setup spread across 1,000 accepted packs contributes 30p per pack; across 5,000 it contributes 6p. These figures are arithmetic examples, not Stockholm prices or minimum quantities. They show why a lower-volume trial can have a different effective unit cost even when the production rate is unchanged.
Materials and stock
Confirm who purchases bulk product, containers, closures, labels and outer packaging. Agree how surplus stock, damaged components, samples and product remaining in the equipment are recorded and handled. Storage, delivery and collection should be explicit scope items rather than assumptions.
For a first run, compare the initial quantity with the likely repeat pattern and identify which assumptions would change the quotation.
Contract filling quote checklist
What should you include in a production brief?
A complete brief produces a faster, more comparable response. If a detail is unknown, say so—it is better to identify an open decision than hide it.
Supplier comparison
Compare the handovers that can delay a filling run
Use the same approved product and pack brief for each proposal. A useful comparison shows where responsibility passes between the product owner, component suppliers and contract packer.
- Before materials arrive: identify the approved revisions, incoming checks and the decision maker for a substitution.
- Before production starts: confirm the first-off reference, quantity-control method, labels, codes and required release authorisation.
- During the run: state the in-process records and the response to a component, filling or closing problem.
- At reconciliation: compare received stock with accepted packs, retained samples, agreed losses and unused material; record unexplained differences.
- Before dispatch: identify who releases the batch, the finished-stock configuration and the collection or delivery arrangement.
Ask how a late artwork change, short component delivery or rejected incoming batch affects the schedule and price. Availability should be confirmed against materials and approvals actually ready for use. This makes the comparison about the complete job rather than an apparently attractive rate with unresolved dependencies.
Use the production brief checklist to identify open decisions and the contract packing service when assembly or finishing is the main task.