Decaf - What is the Process?
The benefits of really good, decaffeinated coffee, created by clean processes, are that the flavor, body and unique aroma are all maintained. Let’s shed some light on how this is done and how our decaf coffee is part of a more environmentally friendly and sustainable method for positive impacts on both product quality and what we stand for as an artisan coffee roaster.
Mountain Water Process
Mountain Water Decaffeination Process: The mountain water decaffeination process, also known as the "direct method," is a method of decaffeinating coffee that uses pure water from the glaciers of the highest mountain in Mexico, Pico de Orizaba.
Here are some key points about this process:
- Green coffee beans are soaked in water to extract the caffeine and the flavor compounds.
- The water solution is then passed through activated charcoal filters to remove the caffeine while retaining the flavor components.
- The beans are immersed in the caffeine-free water to reabsorb the lost flavors and oils before drying.
Citlaltepetl o Pico de Orizaba, Mexico
Environmental Effects of Mountain Water Decaffeination Process:
Water Usage: The mountain water decaffeination process requires a significant amount of water, especially as it involves repeated soaking and rinsing of coffee beans. This can potentially strain local water resources in regions where this method is utilized.
Chemical Usage: While the mountain water process is generally considered more environmentally friendly than some chemical decaffeination methods, some plants use small amounts of chemicals in the filtration process, mostly Methylene Chloride. Proper disposal and management of these chemicals are crucial to minimize environmental impact. Descamex is Thanksgiving Coffee’s source for this process. They are Fairtrade and organic certified and have developed a method that is 100% chemical free.
Energy Consumption: The energy required for maintaining the water at specific temperatures, running filtration processes, and drying the beans post-decaffeination all contribute to the carbon footprint of the mountain water decaffeination process.
Swiss Method
Swiss Water Decaffeination Process: The Swiss water decaffeination process is also a popular method for removing caffeine from coffee beans. This process is entirely chemical-free and relies on solubility and osmosis.
Here's how it works:
- Green coffee beans are soaked in hot water to dissolve the caffeine and flavor compounds.
- This water is passed through an activated charcoal filter to remove caffeine, leaving behind the water with the soluble flavor components.
- The beans are then soaked in this flavor-charged water, allowing them to reabsorb the flavors without the caffeine.
Swiss Water Decaffeination Process
Comparison
Decaffeination Method: While both processes use water, the mountain water process directly utilizes water from the mountain glaciers, whereas the Swiss water method continuously filters and reuses water.
Use of Chemicals: The Swiss water process is entirely chemical-free, making it a popular choice for those seeking natural decaffeination methods, whereas the mountain water process may use small amounts of chemicals (methyl chloride) in the filtration process.
Origin: The mountain water process originates in Mexico, utilizing pure glacier water, while the Swiss water process derives its name from the company that pioneered this technique in Switzerland.
Environmental Impact: The Swiss water process is often touted for its low environmental impact due to its lack of chemicals, while the mountain water process may have a slightly higher impact depending on the chemicals used.
In conclusion, both the mountain water and Swiss water decaffeination processes offer unique approaches to decaffeinating coffee beans, each with its own advantages and environmental considerations.
Thanksgiving Coffee Now Uses Swiss Water Process
Thanksgiving Coffee had used the Mountain Water Process in the past due to the quantity of the green coffee beans we source from Central and South America for a lower carbon footprint. However in our quest to search out the most innovative and sustainable practices for coffee production we are leaning into the Swiss water process for our future decaf processing.
So whether you are caffeine sensitive or want to enjoy your coffee anytime day or night we have you covered with amazing tasting, well-crafted decaffeinated coffee.
Lavender Grace is a Creative Consultant for Thanksgiving Coffee Company