Food scientists at The Ohio State University wanted to see if cooler water could kill bacteria on dirty dishes like E. coli and salmonella. The study found that even when dishes were washed in cooler temperatures, it still cleaned enough bacteria away to levels accepted in the [US] food and drug administration's food code.This news sounds good to the lazy housekeeper. But beware: there are many strings attached to the findings of this study.
The study does not show that a quick rinse of the dishes in cold water after use is all one has to do. There are still other preparatory steps that must be taken to keep dishes and household utensils clean.
Food that sticks onto dishes can be a breeding ground for bacteria. If the dishes are left in the sink for a long time after use, some food particles can stick to the dishes. That is not good, and cannot easily be washed away with either cold or hot water. Dishes should be rinsed clean soon after use. Soap is always helpful. A thorough washing soon after use is the best recommendation.
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