I have a recipe for homemade kahlua that is made with instant coffee. After you have "cooked it", it says to let it cool before adding the liquor. What temperature should I let it cool to before adding the liquor, and what would happen if I add it too soon?
I made this about two years ago, and didn't really care for the instant coffee taste, so this year I decided to brew the coffee, using a better brand of coffee (I just happened to decide on Seattle's Best French Roast Dark Roast) and basically made it the same way. I like it much better than the instant coffee method. I let it cool to almost room temperature before I added the liquor and it is yummy.
I just was curious what is the best temperature to add liquor. Someone said if I add it when the mix is too hot that the liquor will evaporate. I wouldn't want to spoil a whole pot of Kahlua, and just wanted to be more informed.