I have recently added alcoholic Baileys/vodka to hot chocolate and coffee. The boiling point of ethanol is 70C, does the alcohol boil off?
In: Chemistry
The USDA actually did a study on this about a decade ago. You can find the relevant results here on page 12:
https://www.ars.usda.gov/ARSUserFiles/80400525/Data/retn/retn06.pdf
TLDR when stirring baileys (or any liquor) into a hot drink, you lose about 15% of the ethanol.
Edit: clarity
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