Smelling your food to check if it's still edible

Smelling your food as a way to check if it's gone bad is common in almost every household. But experts say that's not a reliable test because some bacteria do not produce smell. Arnold & Andrea speak with Dr William Chen, Director, Singapore Future Ready Food Safety Hub (FRESH@NTU). He says there are some other ways to check just to be safe. See omnystudio.com/listener for privacy information.