Puroast Coffee Patents Low-Acid Roasting Tech, Targeting Healthier Coffee Markets

Puroast Coffee's COO James Sachs had a message ready the moment the US Patent and Trademark Office issued the company's foundational roasting patent: competing brands marketing their coffee as "low acid" without scientific proof are "committing food fraud and lying" and "will be held accountable by consumers and regulatory authorities."

The granted patent, Application 17/965,642, is a System and Method Patent covering all steps in Puroast's proprietary roasting process, and is believed to be the only active patent in the United States for producing low-acid coffee. That distinction hands the High Point, North Carolina company a legal instrument to defend its position in a category worth $14 billion, and to pursue licensing arrangements with any roaster that wants to legally operate in the verified low-acid space.

CEO Kerry Sachs called the grant a significant milestone: "Puroast is already known as the only company with research confirming the low acid chemistry of its coffee and the patent now literally gives us license to aggressively expand into multiple markets." The company sells through Amazon, Kroger, and Publix, and has a media-for-equity deal with Sinclair Broadcasting spanning 186 stations across 87 markets. James Sachs described the IP as building "a durable legal barrier that prevents competitors from copying our exact low-acid, high-antioxidant process," protecting margins and enabling global control over how the technology is deployed.

Three independent studies, two from the University of California, Davis and one from North Carolina Agricultural and Technical State University, found Puroast's coffee is on average 70% less acid than leading commercial brands. A 2024 NC A&T peer-reviewed panel tested 11 coffees marketed as "low acid" and only one cleared the critical pH threshold of 5.5. Puroast's line averages pH 5.7, while most competitors sit at pH 5.2 or lower. Food scientist Dr. Salam Ibrahim, whose published work the company references, confirmed that competing brands "average five times more acid than Puroast" on a pH basis.

For shoppers navigating a grocery aisle stacked with unverified "low acid" claims, those numbers provide a concrete filter. The NC A&T study found only one brand in a field of 11 exceeded the pH 5.5 threshold. A pH above 5.5, verified by published peer-reviewed research rather than package copy, is the standard Puroast established over nearly four decades of development and that the patent now locks in as intellectual property. Without an independent study confirming actual pH levels, a "low acid" label is marketing, not measurement.

The cost of a genuinely verified cup shows up at retail. Puroast's 2.2-pound bags run approximately $36 on Amazon, a significant premium over mainstream ground coffee. With 40% of consumers reporting stomach irritation from conventional coffee, the demand driving that premium is real and growing. If the patent becomes the category's de facto standard for what "low acid" legally requires, any brand making the claim without licensing the technology or funding equivalent research faces both a regulatory exposure and a credibility problem. James Sachs has made clear Puroast intends to hold them to it.