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The core role of food packaging headspace gas analyzers

Oct 26,2025

Source: Link Testing Instruments Co.,Ltd.

Food packaging gas analyzers are core equipment for ensuring product quality and safety in the food industry. Their core function is to accurately measure the gas composition in the headspace of sealed packaging containers (such as bags, boxes, cans, and bottles), primarily the residual levels of oxygen and carbon dioxide. Their specific functions and importance are reflected in the following aspects:

 

  1. Core Functions

 

  1. Ensuring Food Safety and Extending Shelf Life

Monitoring Residual Oxygen: Oxygen is the primary culprit for food spoilage (such as oil oxidation, discoloration, and flavor deterioration) and the growth of microorganisms (particularly aerobic bacteria and mold). By accurately measuring residual oxygen, we can ensure that the packaging process achieves the desired low-oxygen environment (e.g., <1% or <0.5%), effectively extending the shelf life of food.

Monitoring Carbon Dioxide Levels: In modified atmosphere packaging, carbon dioxide inhibits the growth of most aerobic bacteria and mold. The HGT-01H headspace gas analyzer can confirm whether the carbon dioxide concentration within the package is within a preset effective range (typically 20%-80%).

 

  1. Verify the Stability of the Packaging Process

Whether using vacuum or gas packaging, packaging machine performance (such as vacuum efficiency, gas exchange rate, and sealing) will fluctuate over time. Regularly sampling the gas composition of finished packaging products is the most direct way to monitor the stability of the packaging line. A sudden increase in residual oxygen levels may indicate a packaging machine malfunction or a leaky seal.

 

  1. Improve production efficiency and control costs

Portable headspace gas analyzers enable rapid spot checks on the production line (results in 3-5 seconds), eliminating the lag associated with traditional laboratory testing and reducing packaging material waste due to leaks. Early detection of sealing issues can also reduce recall costs.

 

  1. Meet regulatory and standard requirements

Standards such as the EU, US FDA, and China's GB/T 30421 have strict regulations on residual oxygen limits in food packaging.

 

  1. Recommended Equipment

Headspace Gas Analyzer LTDK-190

HGT-01H Headspace Gas Analyzer. It is produced and researched by Link Testing Instruments Co.,Ltd.

 

  1. Core Advantages:

Automatic Calibration: One-touch automatic calibration for quick and easy operation.

High-Precision Measurement: Utilizes imported components from world-renowned brands, resulting in high test accuracy, low failure rate, and long service life.

Portable Design: Features an industrial-grade color HD touchscreen and a convenient handheld design for one-handed operation. Lightweight and portable, it is suitable for a variety of testing requirements.

Sampling Protection: Features a protective cover for the sampling needle to effectively ensure test safety.

Data Management: Multi-level user access management, password login, and a wireless Bluetooth micro-printer for direct printout of test results.

 

  1. Application Scenarios:

Food factories monitor oxygen levels in sealed packaging to prevent oxidation and spoilage of snacks and fresh produce.

Pharmaceutical companies monitor carbon dioxide concentrations in pharmaceutical packaging to ensure expiration dates.

Quality inspection agencies obtain accurate data during field inspections.

 

This device utilizes an imported electrochemical sensor, achieving an oxygen detection accuracy of ±0.2% and a resolution as low as 0.01%, accurately capturing minute changes in oxygen levels. Designed for diverse food production scenarios, it is extremely portable—weighing only 0.7kg and easily held in one hand—making it suitable for flexible use on production lines, in warehouses, and in laboratories. It delivers test results in 8-10 seconds and is compatible with a variety of packaging types, including soft bags, glass bottles, and cans.

For more details please visit www.linktesting.org

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