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PACKAGING, CONTAINERS, AND SEALING SYSTEMS

Leak testing of packaging and components for the food industry

Technical guide to leak testing for food containers and packaging, such as bottles, pouches, cartons, cans, and plastic containers. Learn about leak rates, air testing methods, and recommended equipment to ensure packaging integrity, extend product shelf life, and meet quality and safety standards.

Selection of leak tests for food packaging

In the food industry, the airtightness of packaging is key to preserving quality, preventing contamination, and extending the product’s shelf life. From rapid testing on production lines to seal validation for flexible and rigid packaging, this guide helps you identify the appropriate method, acceptable leak rate, and ideal equipment for each type of container or application.​

Component / Application Leak Reference
(Criteria)
Recommendend Method Recommended Equipment
Leak test for water dispenser (water server)
Technical description
Equipment used for supplying drinking water that requires sealing to prevent contamination and leaks.
3.3 mL/min Air LS-1881A / LS-1866 / LS-R902
Leak test for a cup container
Technical description
Container used for storing or dispensing disposable cups; requires integrity testing.
12 mL/min Air LS-1881A / LS-1866 / LS-R902
Leak test for cardboard (packaging)
Technical description
Cardboard packaging used for food or other products that requires leak protection to safeguard the contents.
13 mL/min Air LS-1881A / LS-1866 / LS-R902
Prueba de fuga para cartón (empaque)
Technical description
Blow-molded containers used for liquids or chemicals require leak testing.
70 mL/min Air LS-1881A / LS-1866 / LS-R902
Prueba de fuga para empaque tipo pouch
Technical description
Flexible packaging used for food or liquid products that requires seal testing.
44 mL/min Air LS-1881A / LS-1866 / LS-R902
Leak test for bulk cans
Technical description
Metal container for bulk storage of products that require leak control.
1.4 mL/min Air LS-1881A / LS-1866 / LS-R902
Leak test for pillow-style packaging
Technical description
Sealed flexible packaging used for food products requires validation of the seal under pressure.
50Pa(φ0.05) Air LS-1881A / LS-1866 / LS-R902
Bottle leak test
Technical description
A rigid container used for liquids that requires structural integrity and a seal.
2.6 mL/min Air LS-1881A / LS-1866 / LS-R902
Leak test for milk can lids
Technical description
A lid used on dairy product containers that requires a precise seal to prevent contamination.
8(φ0.025) Air LS-1881A / LS-1866 / LS-R902

Which component do you need to validate?

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