I make a pot of decaf every morning for my wife as she has acid reflux.
I can't stand it so I go to a local breakfast restaurant every morning and have 2 cups of there black fresh ground coffee .
I also go to socialize with several people I see daily.
Try making "Cowboy Coffee", by boiling the grounds, it cooks off the acids and other stuff that triggers that reaction, and still leaves the full flavor behind.
I tried it, and it was the smoothest, most "civilized" cup of coffee I ever had.
How to Make Cowboy Coffee - YouTube
I have consumed coffee since I joined the US Navy,, in 1970,,
I have had every possible combination of coffee prep imaginable,,
BUT,, until you try the "Cowboy Coffee" like it is made in the video,,
you can not imagine the beverage ,, it is that different.
I too have had acid reflux and other types of indigestion from coffee,,
BUT,, NEVER anything negative from the Cowboy Coffee.
One further thing I learned from some YouTube Video,,
(I am not positive how, but, it works,,)
the addition of a pinch of salt will remove any remaining coffee bitter taste.
I never liked decaf, but, I always wanted to have coffee in the evening,, but, I always passed because of the coffee keeping me awake.
Well,, try decaf coffee made the "Cowboy Coffee" method.
WOW,, tremendous flavor,, and no (or minimal) caffeine that keeps you awake!!.
The unique thing is, the type of grounds does not seem to have a major impact,, I have tried a half dozen brands so far, I like them all.
Also, fine versus coarse grind can create a need for a different amount of time of the boiling.
The one negative is that none of the videos I have seen give EXACT quantities of ingredients.
My EXACT instructions are
3 level tablespoons of Lavazza Classico coffee grounds added to 22 ounces of boiling water.
Boil for 4 minutes.
Remove from the heat, then add two ounces of cold water.
Let it set at least 30 seconds.
Add a pinch of salt to the empty cup.
Pour the Cowboy Coffee into a 20 ounce cup,,
Throw away the remaining coffee,, it has the grounds in it.
Do not be surprised if you actually like the coffee with no sugar, or cream,, it is that different.
Try making it, if you want to be amazed!!
One other note: Coffee prepared this way is SUPER HOT,,
I have found that placing a soup spoon into the coffee for at least 30 seconds will cool the coffee to a reasonable temperature,,
If I am in a big rush,, I will put TWO spoons in the coffee to cool it even faster.