I agree with the other posters. cutting back slowly and being aware of how different coffees affect you helps alot. the older I get the more careful I have to be about how much caffeine I have and it's easy to get in the habit of drinking it all day. as far as the heartburn goes, I find that in my case even though coffee affects it, it is really more affected by certain foods like bell pepper or red meat. not necessarily things you would immediately expect. tomato is more obvious and also does not help.