By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. View our Privacy Policy for more information.
PreferencesDenyAccept
Contact Us

Interested?

Talk To Our Experts

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

What is Vacuum Decay?

The Industry-Standard Leak Detection Method
Request a Free ConsultationAsk an Expert

Everything You Need to Know About Vacuum Decay:

The Industry-Standard Leak Detection Method

Vacuum decay is one of the most trusted methods for detecting leaks in sealed food packaging. As a non-destructive, highly sensitive technique, it has become an essential part of quality control for manufacturers around the globe. This guide will walk you through the vacuum decay process, its benefits, and how it can help safeguard the integrity of your packaging.

What is Vacuum Decay Testing?

Vacuum decay testing is a non-destructive method used to detect leaks by measuring pressure changes inside a test chamber. When a vacuum is applied to the packaging, any leaks will cause air to enter the chamber, which results in a measurable pressure rise. This test method is particularly effective for detecting small leaks that could compromise the product’s shelf life or safety.

Vacuum Cycle Curve

How Does Vacuum Decay Work?

Step 1

Preparation

The sealed package is placed inside a test chamber, and the chamber is sealed.

Step 2

Vacuum Application

A vacuum is applied to the chamber, reducing the internal pressure.

Step 3

Monitoring

The pressure inside the chamber is monitored over a set time period. If there is a leak, air will be drawn into the package, causing a rise in pressure.

Step 4

Analysis

The system analyzes the pressure change to determine if the package is airtight or has a leak.

Benefits of Vacuum Decay Testing:

Non-Destructive

Unlike traditional methods, vacuum decay does not damage the packaging or product, allowing for retesting or further examination.

High Sensitivity

This method can detect very small leaks that other techniques might miss.

Efficiency

The vacuum decay method is fast and automated, making it ideal for large-scale production environments.

Compliance Ready

Vacuum decay testing is recognized by global regulatory bodies and aligns with industry standards, such as ASTM F2338.

When Should You Use Vacuum Decay Testing?

For Ensuring Packaging Integrity in Sensitive Products

Vacuum decay testing is well-suited for most food items, pharmaceuticals and medical devices, because of the safety and quality aspect. It can detect microleaks that are often missed by traditional testing methods.

When a Non-Destructive and Reproducible Test is Required

Unlike bubble or dye testing, vacuum decay testing is non-destructive, allowing packages to be tested without damage. This enables repeated testing on the same package and supports sustainable practices by reducing waste​​.

To Achieve High Sensitivity and Quantitative Data

Vacuum decay testing offers superior sensitivity, making it capable of detecting even the smallest leaks. Additionally, it provides quantitative data on leakage rates, enabling more precise quality control and process optimization​​.

For Faster and Operator-Independent Testing

The process is highly automated and less reliant on operator skill, ensuring consistent results with minimal variability. This efficiency makes it suitable for high-volume production environments where speed and accuracy are essential​​.

Best Practices for Vacuum Decay Testing

1
Proper Verification and Validation

Ensure proper Verification and Validation of the vacuum decay system for accurate results.

2
Regular inspections

Regularly inspect the test chamber and seals to avoid false positives.

3
Setting appropriate parameters

Set the appropriate test parameters (vacuum level, test duration) based on packaging type.

4
Maintain Detailed Documentation

Maintain detailed documentation for regulatory compliance and quality assurance audits.