Food expert: wash pre-packed lettuce again before eat

Recent reports on food poisoning from pre-packed salads let many of us having second thought about those handy products. Are these pre-packed lettuce easy and healthy choices for you and your family? Nila Liu intervieweed Associate Professor Zhao Jian from UNSW food science department suggest they might not as easy as we think.

Pre-packed Four Leaf lettuce is from a Coles store on the Gold Coast, Friday, Feb.5, 2016. (AAP) Source: AAP