Botulism could develop in unrefrigerated flavored oils.
Explanation:
Botulism is a paralytic disease caused by the bacterium clostridium botulinum. It was first discovered by E. van Ermengem in 1897. Botulism is Latin for botulus, meaning sausage—disease is commonly transmitted by food not prepared properly.
Therefore, this is the reason why flavored oils should be refrigerated.
