Washing hands in cold water 'as good as hot'
US scientists say they have poured cold water on the theory that washing hands with hot water kills more germs than unheated water.
The small study of 20 people found using water at 15C (59F) left hands as clean as water heated to 38C (100F).
The report, in the Journal of Food Protection, suggests this could help cut electricity bills in restaurants.
NHS advice recommends that people wash their hands in either cold or warm water.