Starch-based sensor changes color to indicate moisture in food packaging

Written and edited by the WorldPing NewsdeskPublished Updated Original reporting: Phys.org
Starch-based sensor changes color to indicate moisture in food packagingWorldPing
Image via Phys.org.

What happened

Brazilian researchers have developed a biodegradable, starch-based sensor that changes color when moisture enters food packaging.

With the addition of cobalt chloride, the sensor changes from blue to pink as moisture levels rise and back to blue as they fall.

Key facts

  • Reported by Phys.org and published Wed, 23 Sep 2026 22:20:08 UTC.

Why it matters

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What to watch next

  • Peer review status and replication of the findings
  • Mission milestones and next scheduled attempt
  • Funding or policy decisions that follow

Coverage timeline

When each newsroom published on this story, oldest first — all times UTC.

  1. NASA Aircraft to Make Low-Altitude Research Flights Over Colorado

  2. Starch-based sensor changes color to indicate moisture in food packaging

Sources

The original report was published by Phys.org. WorldPing does not claim that reporting — this page summarises and contextualises it.

Read the full report at Phys.org

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