☕ Experience the Puroast Difference
House Blend Ground · 2.5lb Shop Now → |
Dark French Roast Ground · 2.5lb Shop Now → |
House Blend Decaf Ground · 2.5lb Shop Now → |
Most coffee brands make health claims. Very few can back them up with peer-reviewed science, independent university testing, and third-party certification. Puroast was founded on a simple but demanding premise: coffee should taste great and make you feel great. After decades of research at UC Davis, independent testing at North Carolina A&T University, and LACCSA certification, the science is unambiguous. Here is exactly what Puroast delivers — and how it was verified.
⚠️ The Science Is Clear: Studies have NOT shown that reducing caffeine directly decreases acid reflux symptoms. Lower acid intake — measured by pH — definitively helps. This is why switching to a genuinely low-acid coffee (pH 5.7–5.9) matters more than switching to decaf, which has the same acidity as regular coffee.
|
7X More antioxidants than leading brands |
5.8 Verified pH — 70% less acidic than standard coffee |
98% Antioxidant retention vs 41% in flash-roasted coffee |
Benefit #1 — Verified Low Acid: pH 5.8
Standard commercial coffee — including most brands labeled "low acid" — measures between pH 4.5 and 5.2. Puroast measures pH 5.8, independently verified by UC Davis and certified by LACCSA (the Low Acid Coffee Certification and Standards Authority). This is approximately 70% less acidic than standard coffee on the logarithmic pH scale.
In 2024, researchers at North Carolina A&T University tested the top 10 "low acid" coffee brands on the market. Their finding: all but Puroast measured between pH 4.7 and 5.2 — statistically indistinguishable from regular coffee. The "low acid" label on most competing brands is marketing, not science.
For consumers with acid reflux, GERD, gastritis, or sensitive stomachs, the difference between pH 4.8 and pH 5.8 is clinically meaningful. The lower pH triggers more gastric acid secretion, more esophageal irritation, and more mucosal disruption. Puroast's verified pH 5.8 reduces this entire cascade.
Benefit #2 — 7× More Antioxidants Than Leading Brands
UC Davis researcher Takayuki Shibamoto published research in the Journal of Agricultural and Food Chemistry confirming that Puroast contains 7× more antioxidants than Starbucks, Dunkin', Folgers, and other leading coffee brands. This finding has been independently replicated and is the basis for Puroast's antioxidant claims.
The mechanism is roasting chemistry. Coffee's primary antioxidants are chlorogenic acids. Flash roasting — the method used by most commercial brands — destroys up to 85% of chlorogenic acids during the roasting process. Puroast's traditional slow-roasting process completes what chemists call Stage 2 roasting, where quinic acids convert into phenolic antioxidants (flavonols) rather than being lost to heat degradation.
A follow-up 2011 study by Sulaiman, Moon, and Shibamoto quantified this precisely: Puroast retained 98.20% antioxidant activity compared to 41.38% for flash-roasted coffee roasted at higher temperature for shorter duration. This is not a marginal difference — it is more than double the antioxidant content.
🌿 Why Antioxidants Matter in Coffee
Coffee is the single largest source of dietary antioxidants for most Americans — not fruits or vegetables. The chlorogenic acids in coffee reduce oxidative stress, support cardiovascular health, modulate blood sugar, and feed beneficial gut bacteria as prebiotics. A coffee with 7× more antioxidants is not a marginal upgrade — it is a fundamentally different product.
Benefit #3 — The Patent-Protected Roasting Process
Puroast holds the only US patent on a low-acid coffee roasting process. This is not a branding distinction — it is a technical one. The patent covers the specific time-temperature relationship that achieves Stage 2 roasting chemistry: the conversion of quinic acids into phenolic antioxidants while simultaneously raising pH from ~5.0 to ~5.8.
No other commercially available coffee brand has replicated this process at scale. This is precisely why the NC A&T 2024 study found that every other tested "low acid" brand failed to deliver genuine low-acid results. Without the Stage 2 chemistry, you cannot achieve pH 5.8 — regardless of what the label says.
☕ How Puroast Compares
| Brand | pH | Antioxidants | Independent Verified | LACCSA Certified |
|---|---|---|---|---|
| Puroast | 5.8 | 7× above average | ✅ UC Davis + NC A&T | ✅ Yes |
| Starbucks | 4.7 | Baseline | ❌ No | ❌ No |
| Folgers | 4.8 | Baseline | ❌ No | ❌ No |
| Other "Low Acid" brands | 4.7–5.2 | Not tested | ❌ No | ❌ No |
Frequently Asked Questions
Is Puroast really 70% less acidic than regular coffee?
Yes — on the logarithmic pH scale, the difference between pH 4.8 and 5.8 represents approximately 10× less hydrogen ion concentration, which translates to roughly 70% less perceived acidity. This has been verified by UC Davis and confirmed by LACCSA certification.
Does it taste different from regular coffee?
Puroast tastes like a full-bodied, smooth premium coffee — not like a "health product." Many customers who switch for medical reasons are surprised by how much they prefer the taste. The traditional roasting process that creates the health benefits also creates a richer, less bitter flavor profile.
Can I use Puroast in my espresso machine or French press?
Yes. Puroast is available in ground coffee formats suitable for all brewing methods including drip, French press, pour-over, and espresso. Single-serve pods are also available for Keurig-compatible machines.
Is Puroast organic?
Puroast focuses on roasting process certification (LACCSA) and independent science verification rather than USDA organic certification. The health benefits of Puroast come from roasting chemistry, not bean sourcing.
Who should switch to Puroast?
Anyone who experiences acid reflux, heartburn, GERD, IBS, gastritis, or general stomach sensitivity after coffee. Also GLP-1 medication users (Ozempic, Wegovy, Mounjaro) whose GI side effects are worsened by high-acid coffee. And anyone who simply wants more antioxidants from their daily cup.
The Only Coffee Verified Low-Acid by Independent Science
NC A&T University (2024): Most "low acid" coffees are more acidic than regular coffee. Puroast is the exception — verified at pH 5.7–5.9.
LACCSA Certified · UC Davis Studied · Patent-Protected Roasting Process
Shop Puroast Low-Acid Coffee →Sources: Moon, Yoo & Shibamoto — JAFC 2009 | Ibrahim et al. — NC A&T 2024 | Sulaiman, Moon & Shibamoto — JDS 2011 | ACG — Acid Reflux Guidelines
Puroast does not provide medical advice, diagnosis, or treatment. Any information published on this website or by this company is not intended as medical advice. Always consult a qualified health professional with any questions or concerns about your physical health.
0 comments
