Adding sugar and cinnamon to the sauce helps dramatically. The sugar helps to reduce the acid and the cinnamon aid sin digestion. Hubster has acid reflux, but when I make sauce, I add about 1/4 cup of sugar and two sticks of cinnamon to it. This is used in many Mediterranean recipes for tomato sauce. I had never heard of using sugar or cinnamon in a tomato sauce until I got a Mediterranean cook book. Ever since I started making the sauce this way, Hubster does not have a problem and neither do I.