How Can Hot Water Freeze Faster Than Cold Water??

Missoula Montana, How Can Hot Water Freeze Faster??

Here is a really interesting article from one of our fellow InterNACHI Inspectors. 
When hot water gets cold, freezing pipes and the Mpemba Effect.
By Our fellow interNACHI Inspector
Don Hester of Wenatchee Home Inspection
When hot water gets cold, freezing pipes and the Mpemba Effect.
With winter putting it grips on the much the country a real issue becomes frozen pipes. Many may not know that your hot water pipes may be even more vulnerable to freezing quicker than the cold water pipes. Remember the key word here…”may”.  This came up in a discussion in a meeting when a local Plumber Matt Bruggman of Plumb Perfect suggested that I may know why, referring to me as the resident scientist in the room (by the way I am not a scientist).
At first I thought, I have heard of it this but really did not know why it happens, and then I questioned myself, was it really true or just more folklore? That lead me to do a little research on this and what I found was even better than what I could have thought.

The phenomenon of hot water freezing quicker is due to what is referred to as the “Mpemba Effect” named after a Tanzanian student who in 1963 at 13 years old noticed that hot ice cream/boiled milk mix freezes faster than a cold one.

It turns out that one day Mpemba put his ice cream in the freezer at school when hot and found out that his ice cream froze before his fellow students who let theirs cool a bit first.  Read The Full Article Here

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NCW Home Inspections, LLC  is a Licensed Washington State Home Inspection service located in Wenatchee Washington serving Chelan County, Douglas County, Kittitas County, Okanogan County and Grant County Washington and the cities of Wenatchee, Leavenworth, Cashmere, Oroville, Cle Elum, East Wenatchee, Quincy and many more…   Find Them On Facebook Click  Here