Coffee Acidity, Cold Brew, and CBD: What We Do and Don't Know
Coffee is naturally acidic, typically pH 4.5 to 5.5, and plenty of drinkers tell us some cups sit better with them than others. Customers ask us regularly whether CBD coffee does anything about that. We answer it the way we answer every CBD question: here is what the research actually looked at, here is what we can say about the beans, and here is what nobody gets to claim.
What the research on CBD and the digestive tract looked at
CBD interacts with the endocannabinoid system (ECS), which has receptors distributed throughout your digestive tract, not just in your brain. CB1 and CB2 receptors line the gastrointestinal wall, the smooth muscle controlling your esophagus and stomach, and the enteric nervous system (sometimes called your "second brain").
A study published in European Journal of Pharmacology reported an effect of CBD on gastric acid secretion in animal subjects, which the authors attributed to CB1 receptor activity in the stomach lining. Separately, a 2011 study in PLoS ONE described what its authors characterized as anti-inflammatory activity on intestinal tissue via CB2 receptor modulation. Neither is a large-scale human clinical trial. Animal and laboratory findings do not carry over to people, and neither study involved coffee.
Researchers have also looked at cannabinoid signaling in the smooth muscle of the esophagus and stomach, including the lower esophageal sphincter. That is a description of biology under study in a lab, not a description of what a mug of coffee does. We are not going to bridge the two for you, and you should be skeptical of any coffee company that does.
The coffee acidity piece, and where our beans fit in
Here's where the product itself has something real to say. Not all coffee is equally acidic. High-altitude single-origin beans, like our Colombia and Ethiopia origins, tend to produce cleaner, less harsh cups than low-altitude commodity blends. Our medium roast Colombia runs lower in acidic compounds than a light roast, since more of those acids break down as the roast goes on.
Brew method matters too. Cold brewing extracts fewer of the acidic compounds than hot brewing, so the same beans make a noticeably less acidic, less bitter cup, with or without CBD. If a harsh cup is not what you want in the morning, cold brew is worth trying: same caffeine, same CBD, smoother result. We have a simple guide to making it at home.
What we're not going to tell you
CBD does not cure anything, and we are not going to say it does. We are also not going to tell you it reduces inflammation, relaxes anything, or eases symptoms. Early animal and laboratory research is not a result you can expect from a cup of coffee. What we will say is what is true: our Colombia is a smooth, medium-roast, specialty-grade coffee with organic hemp extract bonded in during the roast, it is third-party lab tested at 0.0% THC, and cold brewing makes it gentler on the palate still.
If you have chronic GERD or take prescription medications (particularly PPIs or anticoagulants), it's worth a quick conversation with your doctor before adding CBD to your daily routine. CBD is metabolized through the same liver enzymes as many medications, so interactions are worth understanding upfront (Brown and Winterstein 2019).
Try our Colombia CBD Coffee as a starting point. It's our smoothest, most accessible roast, and the one most first-time customers reach for.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before starting any new dietary supplement.
