Friction is the most important factor when washing your hands.
The science of washing your hands (no religion, no goth)

Funny idea, it would do the trick, and with efficiency

Indeed Exnos. They say we could cure the common cold if every body would wash their hands routinely.

Washing of the hands can be an expression of being done with a topic. Or as a matter of cleanliness,
This is a serious discussion about the most efficient way to wash your hands. I am not a doctor, but I wash my hands like one, as in many many times a day. Until about a year ago I always used warm/hot water. But a scientific article I read claims water temp is not important of you are using soap. At the time I took that as true but am now beginning to question this "truth".
Evidence: Hot water alone can rid surfaces of, say food, more efficiently than cold water, so why/how could cold water be as effective?