Clay-Based Antimicrobial Packaging Keeps Food Fresh (image) American Chemical Society Share Print E-Mail Caption Control tomatoes (left) rotted after six days while those wrapped in a new clay-based film (right) stayed fresh. Credit Hayriye Ünal Usage Restrictions Please credit Hayriye Ünal when using this image. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.