Low-moisture food safety (IMAGE) Purdue University Caption Purdue University's Han Chen (left) and Yaohua Feng, along with colleagues at other institutions, have identified key challenges in ensure the safety of low-moisture foods. Credit Purdue Agricultural Communications/Joshua Clark Usage Restrictions News organizations may use this image in reports about the work of Purdue University's Yaohua Feng and her collaborators. License Original content 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.