The Science of Coffee

The definitive low acid coffee myth-busting guide — bean selection, dark roast, cold brew, decaf, organic — every myth refuted with peer-reviewed science.

The complete science of low acid coffee — how traditional roasting converts harsh acids into powerful antioxidants. Roasting determines pH, not bean origin or species.

Chapter 10: The Fourth Wave of coffee is low acid. The convergence of roasting science, consumer health, and industry standards that defines where coffee goes from here.

Chapter 9: The April 2026 USPTO patent on Puroast's traditional roasting process — the first and only federal patent on low acid coffee roasting in American history.

Chapter 8: The Wild West of the low acid coffee market — how the unregulated 'low acid' label was abused, and how NC A&T peer-reviewed testing exposed every brand.

Chapter 7: The UC Davis antioxidant revelation — how Dr. Shibamoto proved that the same roasting chemistry that lowers acid also multiplies antioxidants 5X.

Chapter 6: The Third Wave elevated origin transparency — but origin doesn't determine pH. Roasting chemistry does. The critical gap the Third Wave never filled.

Chapter 5: The customer letters that led Puroast to UC Davis — hundreds of people describing stomach relief from a coffee that hadn't yet been scientifically measured.

Chapter 4: The founding sip — Jim Sachs and the moment that convinced him the world needed traditionally roasted low acid coffee. The sip that launched everything.