Decaffeinated coffee often gets a bad rap, but it doesn’t have to be that way. With the right process, decaf can be just as flavourful and enjoyable as regular coffee. At Voyager, we’re committed to offering top-quality decaf that maintains the rich, full flavours you love. But how is caffeine removed from coffee, and what should you know about the different methods?
Let’s explore the world of decaffeination.
What Is Decaffeination?
Decaffeination is the process of removing most of the caffeine from coffee beans while trying to preserve the beans’ natural flavours. Typically, decaf coffee contains just 0.1% to 3% of the original caffeine content, making it an excellent choice for those who want to enjoy coffee without the buzz. But how is this achieved?
Decaf coffee offers a way to enjoy the rich, complex flavours of coffee without the caffeine. It is perfect for those who are sensitive to caffeine, want to enjoy coffee later in the day, or simply prefer a less stimulating beverage. Modern decaffeination methods have significantly improved the taste and quality of decaf coffee, making it a viable option for any coffee lover.
How Is Coffee Decaffeinated?
Direct-Solvent Process:
In the direct-solvent method, coffee beans are steamed to open their pores, making them more receptive to a chemical solvent, typically methylene chloride or ethyl acetate. The solvent binds with the caffeine molecules, effectively removing them from the beans. Afterward, the beans are steamed again to evaporate any remaining traces of the solvent. This process is efficient and widely used, particularly in large-scale production. However, the use of chemical solvents, especially methylene chloride, can be off-putting to some consumers who prefer a more natural approach. Although the solvents are safe at the levels used, the idea of chemical residues can make some people hesitant to choose decaf coffee processed this way.
Swiss Water Process:
The Swiss Water Process is a chemical-free decaffeination method that relies on water, temperature, and time. Green coffee beans are soaked in hot water to dissolve the caffeine, and the water is then filtered through activated carbon, which traps the caffeine molecules. The caffeine-free water, now rich with the coffee’s natural compounds, is used to soak a new batch of beans. This method gradually removes the caffeine while preserving the coffee’s essential oils and flavours. The Swiss Water Process is praised for its natural approach and for maintaining the integrity of the coffee’s characteristics.
Carbon Dioxide (CO2) Process:
In the CO2 Process, coffee beans are soaked in water and placed in a high-pressure chamber where carbon dioxide is used to extract the caffeine. The CO2 binds with the caffeine molecules and is then removed, leaving the coffee’s flavour compounds intact. This method is highly effective at preserving flavour and is often used in commercial-scale decaffeination. It is a clean process, as it avoids chemical solvents, but it requires specialized equipment, making it more costly and less commonly used by smaller roasters.
Sugarcane Process:
The Sugarcane Process, also known as Ethyl Acetate (E.A.) decaffeination, uses a naturally derived solvent from sugarcane. In this process, sugarcane is fermented to produce ethanol, which is then combined with acetic acid to create ethyl acetate. The coffee beans are first steamed to open their pores, then soaked in the ethyl acetate solution. This solvent selectively removes the caffeine without stripping away the beans flavour compounds. After the caffeine is extracted, the beans are re-steamed to remove any residual solvent and then dried to their original moisture level. The Sugarcane Process is favoured for its ability to preserve the coffee’s natural flavours while using a solvent that is naturally derived.
Introducing Happy Capybara – E.A ‘Sugarcane’ Brazilian Decaf
Our Brazilian decaf is a regional blend from farms across the Cerrado region of Minas Gerais, playfully called Happy Capybara. It’s decaffeinated in Bremen using the sugarcane (EA) process, where a compound derived from fermented sugarcane gently draws out the caffeine and keeps the coffee’s sweetness and flavour in place.
Find our decaf option here: Happy Capybara Sugarcane Decaffeinated