Food Packaging Barrier Testing Explained: OTR vs WVTR
BlogSeptember 5, 2025
Food packaging has a tough job: it must keep products fresh, safe, and appealing, all while meeting sustainability and regulatory requirements. Oxygen and moisture are two of the biggest threats to quality, and that’s where barrier testing comes in. Barrier testing measures how well your packaging keeps oxygen (OTR: Oxygen Transmission Rate) and moisture […]
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