What equipment route is usually considered?
Relish and salsa normally require a wide product path, controlled agitation and a dosing method that transfers both solids and liquid consistently. The largest firm piece and longest fibre should be measured against every restriction, and finished packs should be sampled for ingredient distribution.
Specify the pieces, fibres and free liquid separately
A single statement such as “10 mm pieces” can hide important differences. Firm cubes, soft tomato, onion skin and long pepper fibres behave differently in a valve. Record the largest dimensions, shape, firmness and maximum loading.
The liquid phase can move ahead of the solids during transfer or hopper refill. The trial should observe the product from the first pack after refill to the lowest normal vessel level.
Largest firm piece
Use the maximum normal length, width and thickness—not an average sample.
Long fibres and skins
Check whether flexible ingredients bridge or wrap around moving valve parts.
Free liquid
Control separation so early packs do not receive excess brine or sauce.
Piece integrity
Set the acceptable level of breakage or smearing after pumping and dosing.
Design vessel, valve and nozzle as one particulate-handling path
The narrowest component controls the system. Large cylinders do not solve a restrictive valve, elbow or nozzle. Product path geometry should also support cleaning and visual inspection without unnecessary dead spaces.
| Stage or factor | What to define |
|---|---|
| Feed vessel | Geometry and level control should support consistent solids withdrawal. |
| Agitation | Maintain distribution with low enough action to protect delicate pieces. |
| Inlet valve | Admit a representative solids-to-liquid ratio without bridging or cutting. |
| Outlet valve | Release the dose without trapping fibres or creating intermittent restriction. |
| Hose and nozzle | Use sufficient bore and gentle bends while controlling final placement. |
| Jar or tub opening | Provide enough access for pieces and protect the sealing surface. |
Measure ingredient distribution as well as total dose
Two jars can have the same weight but very different solids content. Define how the filled product will be sampled and which visual or mass-based measure represents an acceptable distribution.
Create representative product
Include maximum normal piece size and solids loading.
Run normal transfer
Do not hand-feed an ideal mixture directly into the cylinder if production uses a pump.
Fill across vessel levels
Sample after refill, mid-level and near the planned low-level set point.
Separate solids and liquid for checks
Use an agreed method to compare distribution between packs.
Inspect piece condition
Check crushing, cutting, smearing and visual presentation.
Close and handle packs
Confirm rims, lids, labels and downstream movement remain clean and stable.
Let the most difficult product control the achievable rate
Particulate filling may need slower valve movement or larger passages than a smooth sauce. Capacity should be based on a proven cycle with the difficult recipe, plus time for product replenishment and distribution checks.
Semi-automatic large-bore depositor
Direct operator oversight and flexible jars or tubs for short runs.
Compact automatic particulate filler
Conveyed containers and controlled agitation for repeated formats.
Multi-head particulate line
Balanced product distribution to every head with automatic closing and inspection.
Use the most fibrous and highest-solids recipe
A smooth salsa base does not qualify a filler for a chunky range. Run the product that creates the highest passage risk and sample enough packs to see gradual separation or ingredient accumulation.
- Largest firm pieces and longest fibres
- Maximum solids-to-liquid ratio
- Minimum normal product temperature
- Vessel refill and low-level conditions
- Dose and solids distribution across packs
- Piece integrity after the full product path
- Nozzle and jar-rim cleanliness
- Cleaning and inspection of valves and bends
Common questions
A large-bore piston or other positive-displacement system may be suitable, but the valve, hose and nozzle must be matched to the largest pieces, fibres and solids loading.
Use suitable vessel geometry and controlled agitation, maintain a consistent operating level and verify distribution across packs after normal refills and dwell.
Yes. Excessive shear, narrow passages or valve action can cut or smear ingredients. Piece integrity should be an explicit acceptance criterion.
Potentially, if the difficult particulate product fits the passages and the machine can still achieve accuracy and clean cut-off with the smooth sauce. Both should be trialled.