Low Acid 50% Lower Acidity. Decaffeinated. . Puroast Low Acid Coffee. Puroast is a great tasting, 100% real Arabica coffee - no treatments or additives. Over 90% of consumers surveyed, experience reduced stomach problems when drinking Puroast. Research conducted by the University of California, Davis shows Puroast to have a pH that reflects an acid level 50% to 80% lower than other leading brands including those coffees claiming to be stomach friendly or low acid. pH is the best measure in determining acid content; the higher the acid level the greater the stomach irritation. Puroast History. Puroast Coffee traces its history from the Andes Mountains of South America. The company’s founder spent many years developing the “Lost Art” of roasting. The proprietary Puroast Process is a blend of old and new technologies and is a sustainable, high efficiency energy system. The result: Puroast Low Acid Coffee. A great tasting, stomach friendly product with 50% less acid than other coffees. Puroast Technology. Puroast Coffee employs a state-of-the-art energy technology toproduce its coffee. Aunique, renewable energy system is used for the proprietary Puroast system. Over 90% of the energy used at the facility is from renewable resources. Puroast received the distinguished Seal of Sustainability from the Sustainable Business Institute. Using renewable fuels lessens dependence on imported fuels and helps Puroast maintain competitive pricing.