A practical production route
Use the eight stages below to compare the complete route for your product, from preparation and pack handling through to dispatch. For lager, the critical issues are foam, carbonation loss, oxygen pickup, pressure hazards and poor seam or cap integrity.
Define the product window
Measure the production range for lager: fill volume or weight, density, viscosity or flowability, temperature, largest inclusion, foam, chemistry and shelf-life process. Select equipment against the worst case, not the easiest sample.
Prepare and feed consistently
Prepare lager to a repeatable specification and supply the filler through a chilled, pressure-rated product circuit with controlled carbonation. Control batch-to-batch variation and avoid long, restrictive or difficult-to-clean pipework.
Apply the required treatment
Chill and carbonate lager to a stable specification before filling. Pressure, product temperature and dissolved gas level must remain balanced through the filler.
Prepare the empty pack
Inspect and present kegs consistently, using guides or tooling that protects the pack finish and confirms presence before filling.
Fill accurately and cleanly
Use a counter-pressure or isobaric beverage filler. Balance product temperature, pressure, fill speed and snift timing. Set the nozzle and container handling so the outside of the kegs remains clean for closing and labelling.
Close or seal the pack
Fit keg valves and spears using a controlled method and verify gasket condition, torque, transit seals and leak integrity before the pack leaves the filling area.
Label, code and verify
Choose a label, sleeve or direct-print method that suits the surface, shape and handling of the kegs. Verify the code remains legible through distribution and use.
Inspect and pack for distribution
Check fill quantity, pack integrity, code and presentation before accumulating or case packing. Confirm the finished kegs survives handling, sleeve wrapping, case packing, palletisation and transport.
Equipment options for lager
These machine types provide an initial route. Dose range, contact materials, output, utilities, change parts and controls should be agreed after a representative product and pack trial.
Recommended filling routeBeverage filling platform
A practical starting point for lager: counter-pressure or isobaric beverage filler with product-specific contact parts and controls.
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Closing and sealingAutomatic closure application
Apply and tighten keg valves and spears with controlled torque, force or position.
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Labelling and codingAutomatic labelling system
Apply labels and traceability data to kegs, with inspection where mix-up risk justifies it.
View Lancing solutionsEngineering, safety and quality controls
Product behaviour
Test viscosity, density, foaming, particle size or flowability using production-representative lager. Balance product temperature, pressure, fill speed and snift timing.
Operator protection
Guard access to moving tooling and control exposure to lager. Address foam, carbonation loss, oxygen pickup, pressure hazards and poor seam or cap integrity in the machinery and process risk assessment.
Cleaning and changeover
Plan for sanitary pressure-rated circuits with validated rinse and clean-in-place routines. Confirm recovery, flushing, allergen or chemical segregation and safe disposal before purchase.
Pack validation
Run the actual kegs and keg valves and spears through filling, closing, labelling and transit tests. Supplier drawings alone do not show real production variation.
Selecting equipment by weekly throughput
| Weekly volume | Typical equipment level | Planning approach |
|---|---|---|
| Under 500 | Desktop or manual-assist | Prioritise low changeover time, flexible tooling and safe repeatability. |
| 500–2,000 | Compact semi-automatic | Separate filler, closer and labeller can provide a practical step up without a full conveyor line. |
| 2,000–10,000 | Two-head or compact inline | Use controlled product feed, powered conveyors and automatic closing or labelling where labour is the constraint. |
| 10,000+ | Multi-head automatic line | Balance every station, include accumulation and specify inspection, rejection and end-of-line handling. |
Prove the line with your product and packaging
The most useful test uses the final lager, kegs, keg valves and spears, label and code. Include the most difficult size or formulation, not only the easiest product.
Discuss this applicationCommon questions about filling lager
What filling machine is best for lager?
A counter-pressure or isobaric beverage filler is the usual starting point because lager behaves as a pressurised beverage that needs counter-pressure filling, low product temperature and controlled foam. The actual choice depends on dose, temperature, inclusions, required accuracy, cleaning regime and output.
Can lager be filled into kegs?
Yes, provided the kegs, keg valves and spears and product are compatible. Test dimensional variation, fill temperature, headspace, leakage, closure performance, label adhesion and distribution before specifying the line.
Should lager be filled hot or cold?
Lager is normally filled chilled using counter-pressure equipment. Lower stable temperature reduces gas breakout and foam, but the exact set points depend on carbonation, pressure and pack format.
How do you reduce foaming and carbonation loss in lager?
Chill the product, match bowl and container pressure, control fill and snift timing, and minimise oxygen pickup. Verify closure or seam integrity immediately after filling.
How should kegs be closed after filling lager?
Fit keg valves and spears using a controlled method and verify gasket condition, torque, transit seals and leak integrity before the pack leaves the filling area.
What output can a lager filling line achieve?
Output depends on dose size, pack handling, fill time, closure method, cleaning and operator loading. As a planning guide: desktop equipment suits under 500 packs/week, compact systems 500–2,000, two-head lines 2,000–10,000 and multi-head systems 10,000+.
What samples are needed to test lager?
Supply representative lager, the complete kegs, keg valves and spears, labels and any coding specification. Include the full product range, especially the highest viscosity, largest inclusion or most difficult pack size.