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The Ultimate Guide to Decaffeinated Coffee: Everything You Need to Know About the Process and Best Varieties
What is Decaffeinated Coffee?
Decaffeinated coffee is an ideal alternative for coffee lovers who want to enjoy the aromas and flavours without the stimulating effects of caffeine. Contrary to popular belief, the quality of a good decaffeinated coffee is not altered by the decaffeination process. What's more, it offers a number of health benefits, including reduced risk of sleep disorders and lower gastric acidity.
Why Choose a Specialty Decaffeinated Coffee?
Specialty decaffeinated coffee is carefully selected to offer an optimal sensory experience, even without caffeine. It is precisely roasted to preserve its aromatic notes, making it a preferred choice for discerning enthusiasts.
How is Coffee Decaffeinated?
Several techniques exist to extract caffeine while preserving the natural aromas of the beans. Below are the primary methods used in the specialty coffee industry:
1. Water Decaffeination (Swiss Water Process)
This natural method relies on a hot water bath combined with activated carbon filters to extract caffeine. Green coffee beans are immersed in pure water, which naturally dissolves caffeine along with other soluble compounds. The water containing these substances then passes through activated carbon filters that retain only the caffeine. The water is subsequently reintroduced into the beans, allowing them to reabsorb essential oils and aromatic compounds, while being completely caffeine-free.
The main advantage of this method is that it uses no chemicals and preserves the coffee's original flavor. It is widely used for high-quality coffees and allows for gentle decaffeination that respects the original coffee's flavor profile.
2. The Ethyl Acetate Method (Sugar Cane Decaf)
This technique uses a natural solvent derived from sugarcane, ethyl acetate, which is naturally present in certain fruits. This method begins by immersing the beans in hot water to open their pores and facilitate caffeine extraction. Subsequently, they are placed in a solution containing ethyl acetate, which binds to and dissolves the caffeine without affecting the coffee's other aromatic components.
After several washing cycles, the beans are dried to restore their natural moisture content before roasting. This method is particularly valued for its ecological nature and its use of a naturally derived solvent. It is especially popular for decaffeinated coffees originating from South America.
3. Supercritical CO2 Decaffeination
Supercritical carbon dioxide (between liquid and gaseous states) is used to extract caffeine. This method begins by placing green coffee beans in a pressurized chamber, where high-pressure CO2 is injected. Under these conditions, CO2 acts as a natural solvent, capturing caffeine while leaving other aromatic compounds intact.
The caffeine-laden CO2 is then filtered to remove the caffeine before being recycled for reuse. This technique is considered one of the most efficient and environmentally friendly. However, it requires expensive equipment and is therefore only used for very high-quality coffees.
4. Decaffeination with Chemical Solvents
Chemical solvents like dichloromethane are sometimes used to extract caffeine. In this process, the beans are first steamed to open their pores. Then, they are immersed in a bath containing the solvent, which binds to the caffeine and extracts it from the beans. Once the caffeine is removed, the beans are thoroughly rinsed to eliminate any trace of solvent before being dried.
This method is widely used in the coffee industry due to its lower cost and efficiency, but it is often avoided for specialty coffees due to concerns about chemical residues and its impact on the coffee's aromatic profile.
Conclusion
Decaffeinated coffee is not an inferior alternative to regular coffee. When chosen well, it allows for a rich sensory experience without the effects of caffeine. Whether for health reasons or personal preference, opting for a specialty decaffeinated coffee guarantees optimal quality and undiminished enjoyment.
Our Staple Decaf
Decaf [El Sueño]
Method: Water-processed, solvent-free
Variety: Typica, Bourbon & Caturra
Located in southwestern Mexico, the Chiapas region was Guatemalan before 1824. Its highly varied topography includes coastal areas, valleys, mountains, and tropical forests. It is one of Mexico's most important producing regions. It benefits from exceptional bioclimatic conditions which have allowed it to develop rich and diverse agriculture on nearly 20% of its land. Chiapas' main productions include coffee, bananas, cocoa, corn, mangoes, as well as honey, sugarcane, and chili peppers.
This region enjoys a great reputation for its cocoa. Chiapas is also home to numerous indigenous communities: Mayas, Tseltal, Tzotzil, Ch’ol, Tojol-ab… Coffee plantations are most often family-owned, and there is a growing number of solidarity cooperatives. In short, it is a region extremely rich in culinary, cultural, and geographical diversity.
