How hot is lukewarm?

- How hot is lukewarm? - The Chef in Me:
Lukewarm is when you mix together 1 part normal, room temperature water with 2 parts boiling water or milk.
Simple!
Now that’s your lukewarm water or milk.

“Generally means between 98 and 105 degrees Fahrenheit, 36.5 to 40.5 Celsius.
When you run the water on your wrist and it feels warmer than your body temperature, but not hot, that should be just about right.
If you’ve ever tested the temperature of warm formula or milk in a baby’s bottle, that’s lukewarm.”