For many people, the aroma of freshly roasted coffee is an irreplaceable morning pick-me-up. However, for those with GERD (Gastroesophageal Reflux Disease) or sensitive stomachs, a cup of coffee is often seen as an “enemy” that triggers a burning sensation in the chest (heartburn) or nausea.
Does this mean you have to stop enjoying coffee? Of course not. At Coffest Roastery, we conducted in-depth research to solve this dilemma. The secret is not in eliminating coffee, but in the selection of beans and processing techniques. Here are the facts behind stomach-friendly coffee that you need to know.
1. Choosing the Right Type of Coffee Beans
The first step in finding GERD-friendly coffee is understanding the difference between Arabica and Robusta. Generally, Arabica has a lower caffeine content than Robusta. Arabica coffee beans tend to be elongated and oval-shaped. They usually have a more curved midline, resembling the letter S, and are larger in size.
Robusta beans are characterized by their round shape, straight center line, and small, dense seeds. According to the International Coffee Organization (ICO), Robusta contains more caffeine, around 2.2%–3.5% of its dry weight, compared to Arabica. In one cup (150 ml), there is around 140–200 mg of caffeine. This caffeine is one of the triggers for excess stomach acid production.
We understand that stomach comfort begins with the selection of the variety. At Coffest Roastery, we curate specialty coffee beans that naturally have good characteristics and quality through a long curation process. Not all Arabica beans are created equal we only select beans of the Laurina variety or high-altitude Arabica that are processed with precision.
2. The Influence of Roasting Techniques
The biggest secret to stomach-friendly coffee lies in the roasting process. According to research presented at the American Chemical Society, NMP (N-methylpyridinium) has a unique ability that is highly beneficial for those with stomach ulcers or GERD.
Acts as an antagonist to caffeine. While caffeine triggers acid production, NMP works to inhibit or reduce this effect. Therefore, the higher the NMP content in coffee, the less likely it is to cause stomach discomfort.
With our expertise in Small Batch Roasting at Coffest, we ensure that each bean reaches its optimal level of maturity to reduce acidity without losing its original aroma. The darker the coffee beans are roasted, the more NMP is formed. That's why dark roast coffee (such as certain espresso profiles at Coffest Roastery) often feels gentler on the stomach compared to light roast coffee, even though it tastes more bitter.
3. Post-Harvest Processing
Processing methods such as Full Washed or Natural Process also affect the pH level of coffee. Coffest Roastery is very careful in selecting green beans that have been properly processed by farmers, ensuring that there is no excessive fermentation that can increase the level of organic acids that irritate the stomach.
4. Brewing Techniques that Make a Difference
In addition to the coffee beans, how you brew your coffee also has an effect. The Cold Brew technique, for example, is known to produce up to 60% lower acid concentration compared to hot water brewing. However, if you still prefer hot coffee, Coffest Roastery's coffee bean collection has been curated to remain “safe” even when brewed using a manual filter (V60) or espresso machine.
Enjoy Coffee Without Worry
At Coffest, we want to introduce coffee beans that are safe for people with GERD and acid reflux. Based on our curation and years of experience, Coffest introduces Laurina as a coffee that is very gentle on the stomach. To learn more about why Laurina is called a coffee anomaly, check out our next article.