Hi,
This is Martin from Nectar of Life. All of our coffees are certified organic. This Half Caff blend is 50% Fair Trade Organic Sumatra which is low in acid. The other 50% is Fair Trade Organic Swiss Water Decaffeinated coffees from Indonesia, Ethiopia and Honduras. The decaffeinated coffees have a bit more acid than the Sumatra, but overall this blend is low acid.
Thanks!