- 1 oz Kahlua in 8 oz of hot coffee. No cream.
- Does the heat destroy the alcohol?
Does hot coffee destroy the alcohol in Kahlua?
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Do it and find out. And let us know the result.
Alcohol boils at 78C, water 100C so a significant percentage of alcohol will evaporate off but not all. It does not get "destroyed" as such.
OK ...... Thanks for the info. By the time I put the Kahlua into the coffee the temperature would be below 100C - maybe about 90C. I will have to measure it.
No. Chemist here. Heat does not "destroy" alcohol in a libation. To remove the alcohol from a liquid, you'd most likely have to "boil it off". Even then you'd remove only about 90% of it. Brewed coffee not hot enough to impact ethyl alcohol at all.
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No, it's not destroyed.
But if you're really wondering if the alcohol will evaporate; see the link below.
Basically, the 78 degree figure mentioned refers to pure alcohol. This value approaches 100 degrees celsius as the alcohol concentration approaches zero percent.
https://www.chemguide.co.uk/physical/phaseeqia/nonideal.html
