MLA Citation: Bloomfield, Louis A. "Question 1093"
How Everything Works 16 Jul 2018. 16 Jul 2018 <http://howeverythingworks.org/print1.php?QNum=1093>.
1093. Is it true that water that has been previously boiled will boil faster than water that hasn't been boiled? — HE, Haddonfield, NJ
I don't think so. The only effect that bringing water to a boil has on the water is to drive dissolved gases out of solution. Once the water returns to room temperature, it's essentially the same as it was before it was heated to boiling, except that it contains very little dissolved air. It may be that this absence of dissolved air will allow the water to boil slightly faster the next time around, but I doubt that you'd be able to detect a difference.

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