Key points from article :
Washing hands with hot water doesn't kill more germs.
Study compared 20 people using water at 15C and 38C.
Volunteers were also asked to experiment with varying amounts of soap.
No difference in the amount of bugs removed as the temperature of the water or the amount of soap changed.
NHS advice is to wash hands for at least 20 seconds and to cover the whole surface of the hands with soap.
The study was published in the Journal of Food Protection.
