Choosing the Right Leak Testing Method for Modified Atmosphere Packaging Modified atmosphere packaging is a packaging method that maintains product quality and extends shelf life by altering the composition of the gases inside the package (oxygen, carbon dioxide, and nitrogen). Products such as meat, fruits, vegetables, seafood, dairy products, and ready-to-eat foods typically use modified atmosphere packaging for preservation,anti-corrosion, and antioxidant protection. This type of packaging demands a high level of seal integrity. If the seal fails to meet requirements—allowing air to enter or the internal gas mixture to escape—it directly disrupts the composition of the gas inside the package, reducing product protection and leading to spoilage, oxidation, and a shortened shelf life. Manufacturers receiving such defective products may file direct complaints or initiate returns; for the manufacturer, the cost of recalling these products is high, and brand reputation may also be compromised. Common Failure Points in Modified Atmosphere Packaging  Poor Heat-Sealing Conditi

• Contaminants in the Sealing Area • Damage to Packaging Materials • Inappropriate Heat-Sealing Pressure, Temperature, or Time • Pinholes or Microchannels in the Film • Pressure and Temperature Fluctuations During Transportation For modified atmosphere packaging, production lines rely on traditional bubble tests to verify the integrity of the seal; however, this method is destructive. Bubble Leak Test: The sample is fully immersed in a detection solution, and the operator visually observes whether continuous bubbles form to determine pass/fail. This method is susceptible to operator eye fatigue...

and using sensors to detect pressure changes to determine the presence of leaks. It is a quantitative analytical method that does not damage the sample. Saicheng’s MK-2000H non-destructive leak tester utilizes high-precision sensors capable of detecting leaks as small as one micrometer and is designed in strict accordance with the ASTM F2338 standard to ensure the compliance and accuracy of test results.

Choose a more advanced leak detection method to reduce unnecessary sample waste. Saicheng's vacuum decay tester is designed in strict accordance with ASTM F2338 and USP 1207 standards and utilizes a high-precision (0.25 fs) sensor to achieve repeatable, deterministic micron-level leak detection. Featuring a dual-system, three-sensor configuration, it supports both vacuum decay and pressure decay testing

methods, helping you precisely control product quality and avoid losses caused by non-conforming products. We’ve compiled a comprehensive guide specifically on leak testing. If you’d like to learn more, please read our article: “Leak Testing Equipment: Methods, Applications & How to Choose the Right System for Packaging,” or contact our technical team directly for expert sup