The largest awkward inclusion controls the product path
Average particle size is not enough. Record the length, width, thickness, firmness and shape of the largest credible fruit or vegetable pieces and any long fibres. A thin strip can bridge a port even when its diameter is small.
The carrier viscosity and solids density determine whether pieces settle, float or remain suspended. Agitation should restore consistent distribution without breaking the product down or repeatedly passing fragile pieces through a high-shear pump.
Maximum piece geometry
Measure the longest, widest and firmest inclusions expected in normal production.
Solids loading
Record typical and maximum piece percentage and how it changes through the batch.
Distribution
Check start, middle and end samples rather than relying on total fill weight alone.
Texture damage
Compare pre-fill and post-fill pieces for cutting, mashing or fibre breakdown.
Choose the pack before finalising the filling machine
Container opening, stability, closure, sealing surface and decoration determine how the product can be presented, filled and transferred. Use commercial samples from the intended supplier and include dimensional variation in the trial.
| Pack route | Application considerations |
|---|---|
| Wide-mouth jars | Provide nozzle clearance and can accommodate larger pieces, but finish cleanliness remains essential for capping. |
| Retail pots | Allow broad openings and portion formats; the rim must remain clean for foil or lid sealing. |
| Pouches | Require support, controlled opening and careful seal-zone protection from strings and inclusions. |
| Foodservice tubs | Larger fills reduce dose count but demand stable handling, lid application and manageable pack weight. |
Build the machine route from product feed to finished pack
Mixer hopper
Prove suspension at full and low product levels without unacceptable texture damage.
Open valve route
Check vessel outlet, pump, hoses, fittings, manifolds, check valves and cut-off—not just the nozzle.
Metering repeatability
Record both total dose and solids distribution across consecutive packs.
Anti-drip control
Prevent sticky tails or pieces from contaminating jar finishes and sealing lands.
Hot-fill timing
Where applicable, manage heat loss, cap application, dwell and cooling within the producer’s validated process.
Cleaning access
Confirm all areas that can trap fibres, seeds, skins or product after draining.
Closing, sealing, labelling and coding are part of the same acceptance test
Wide-mouth jars often use twist-off lids, while pots may use foil and snap lids. The line must maintain headspace and a clean sealing surface even when pieces arrive near the end of the dose. Include cap or lid presentation, application and reject criteria in the same representative run as filling.
Agree measurable results for dose, presentation, closure or seal, label, code, reject handling and sustained output. A fast isolated filler cycle does not prove an integrated production line.
Scale automation from weekly demand—not headline speed
Convert saleable weekly demand into available production minutes, then allow for warm-up, replenishment, cleaning, changeovers, inspection, rejects and operator tasks. Desktop, compact, two-head and multi-head systems are planning bands rather than guaranteed capacities.
Desktop or semi-automatic
Manual pack presentation with assisted filling, capping or labelling. Prioritise flexibility and manageable cleaning.
Compact or two-head line
Coordinated conveyor stages, repeatable presentation and selected automatic feeding or closing.
Multi-head automatic line
Integrated container, closure, inspection and end-of-line handling with a defined acceptance run.
Representative trial checklist
Use the most difficult normal combinations—not only an ideal batch and pack.
- Largest and firmest fruit or vegetable pieces.
- Highest normal solids loading and longest fibres.
- Start, middle and end of a representative batch.
- Full and low hopper levels.
- Normal fill temperature and worst credible heat loss.
- Piece distribution across consecutive containers.
- Nozzle cut-off and jar-finish cleanliness.
- Cleaning, drainage and retained-product inspection.
Common questions
A piston or pump-based route with generous product passages, suitable valve geometry and controlled agitation may be assessed. The largest pieces and fibres must pass every restriction in representative trials.
Use appropriately designed agitation or circulation, manage hopper level and refill method, and sample fills throughout the batch. Excessive mixing can damage texture.
Yes, subject to pouch opening, support, nozzle clearance, headspace and seal-zone protection. Pieces and strings must not enter the sealing area.
Record total weight and also assess the quantity or mass of pieces in sequential packs. Total weight alone can hide poor solids distribution.