Deaeration and Deoxygenation: Techniques for Removing Dissolved Oxygen Before Filling

Views: 292 Author: Howie SUN Publish Time:
Two quotations that look different usually differ in four numbers: the slowest station, the changeover time, the CIP time and the consumable cost. Dissolved oxygen (DO) is the silent enemy of colour, flavour and vitamin retention in juice, tea, dairy and sensitive CSD pre-mix.

Deaeration and Deoxygenation: Techniques for Removing Dissolved Oxygen

Key facts at a glance
Supply scopeFilling, capping, labelling and packing equipment
Sizing basisDemand in units per day, divided by productive hours and a production factor
Production factor0.65-0.85 depending on formats and changeovers
Key controlFill accuracy, closure integrity, changeover time
Key decisionOne flexible line or two dedicated lines
AcceptanceOutput, accuracy, closure and changeover, measured

How do you compare two quotations that look different?

Compare the lowest rated station, the changeover time, the CIP time and the consumable cost per 1,000 units. A lower price with a slower packer or a longer CIP is not a lower cost. Ask both suppliers for the same four numbers in writing.

Where does a filling line lose output that the specification ignores?

Changeover, CIP, label roll changes and downstream stops. A line rated at 12,000 BPH and run with four formats and two changeovers per shift delivers closer to 8,000. The production factor is not a discount on the machine; it is what the plant actually gets.

DecisionWhat it fixesWhat it does not fix
Filling principleProduct and accuracyDownstream capacity
Valve countRated BPHChangeover and CIP time
Automation levelLabour per shiftProduct quality
Line layoutFloor space and flowThroughput of the slowest station

Throughput and change-part lists are on the Gravity Filling Machine for Still Water page rather than in this note.

What belongs in the acceptance protocol?

Rated output at the specified format, fill accuracy on a defined sample, closure torque or seam measurement, and a full changeover timed with the customer watching. Anything not measured at acceptance becomes a discussion after the money is paid.

Sizing for this duty runs through the Volumetric Filling Machine for Still Water, where the valve count is set out.

What is the difference between capacity and throughput?

Capacity is what the machine can do at steady state in one format. Throughput is what the plant gets across a week of changeovers, cleaning and stops. Plans built on capacity alone are the reason new lines look slow in their first month.

The same question is worked through from another angle in Volumetric vs Gravimetric Filling: Which Holds the Dose.

How to read the numbers. All capacity numbers here are the ranges published in the product specification. Rated capacity is a steady-state number; changeover and cleaning sit outside it, so size on 0.65-0.85.

Frequently asked questions

What is the difference between BPH and bottles per minute?

BPH is bottles per hour; divide by 60 for bottles per minute. A 12,000 BPH line runs at 200 bottles per minute, and every downstream machine has to carry that rate.

How long does a filling line last?

A well-maintained stainless line runs for well over a decade, with wear parts replaced on condition. The variables are water quality, cleaning regime and whether spare parts are kept in stock.

What drives the price of a filling line?

Valve count, automation level, material of construction, whether blowing is included, and the packing format. Price follows the specification, so two quotes are only comparable when the specifications match.

How do I verify a supplier before ordering?

Ask for the factory acceptance test procedure, a reference line running the same format, and the spare parts list with lead times. A supplier who cannot show a running line has not commissioned many.

Key takeaways
  1. Fix the product and the package before the machine.
  2. The production factor is what the plant gets, not a discount.
  3. Anything not measured at acceptance becomes a later argument.
  4. The factory test proves the specification, not the building.
About the author
Written by the Sunswell engineering team - led by Howie SUN, Founder & CEO, with 14 years in filling and blow-moulding equipment R&D and turnkey project delivery across 71+ countries.
Last reviewed: 2026-08-28 . Reviewed by Sunswell engineering team
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