I have a question. Why does coffee not bother me but home made "koolaide" does? I wondered if it was because of the citric acid in the pwderdered ingredients. Or, perhaps the coffee actually does bother me, and I don't feel it until much later, after it has done its' damage. I have coffee in the morning and my asthma medicine is much reduced because of it. My doctor agrees. It concerns me a bit, because I know there can be damage to the esophagus if GERD is left untreated. Any ideas? Yours for a peaceful day, Mamacita