For many coffee drinkers, the idea of decaf can feel like a compromise. Too often, decaffeinated coffee is associated with a flat taste and the loss of the unique character that makes coffee so enjoyable. But with the Mountain Water Decaffeination Process, that stereotype no longer holds true. This innovative, chemical-free method ensures you can enjoy all the flavour of your favourite beans without the caffeine.
What Is the Mountain Water Process?
The Mountain Water Decaffeination Process (MWP) is a natural and environmentally friendly method developed in Mexico. It is carried out exclusively at the Descamex facility in Veracruz, using crystal-clear glacier water from Pico de Orizaba, Mexico’s tallest mountain. This pure mountain water is the foundation of the process, which gently removes caffeine while preserving the bean’s essential oils, sugars and flavours.
Unlike traditional decaffeination methods that rely on chemical solvents such as methylene chloride or ethyl acetate, Mountain Water uses nothing but water, temperature and advanced filtration. This ensures the result is a 100% chemical-free decaf coffee that stays true to its origin.
How Does It Work?
The process is both simple and precise:
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Soaking the Beans – Green coffee beans are immersed in hot water. This draws out the caffeine, along with some of the soluble flavour compounds.
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Filtering the Caffeine – The caffeine-rich water is passed through a special carbon filter that selectively traps caffeine molecules while leaving behind the flavour compounds.
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Re-Infusion – The beans are then re-immersed in this flavour-saturated, caffeine-free water. Because the liquid already contains the bean’s natural flavours, only caffeine is extracted further, while the original profile is preserved.
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Drying – Finally, the beans are carefully dried to their ideal moisture content, ready for roasting.
The result is green coffee that is 99.9% caffeine-free, yet still retains the richness, aroma and complexity of its caffeinated counterpart.
Why Choose Mountain Water Decaf?
There are many reasons both roasters and coffee drinkers prefer Mountain Water decaf:
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Chemical-Free – No solvents or additives are used at any point.
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Flavour Preservation – By re-infusing beans in their own flavour-charged water, the process ensures a cup that tastes like “real coffee,” not a muted decaf.
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Sustainability – Using pure mountain water and advanced filtration makes this a natural and eco-conscious choice.
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Versatility – Whether you prefer espresso, cafetière or pour-over, Mountain Water decaf performs beautifully across brew methods.
Mountain Water vs. Swiss Water
You may have heard of the Swiss Water Process, another water-based decaffeination method. Both are chemical-free and focused on flavour preservation. The key difference is location: Swiss Water is produced in Canada, while Mountain Water is produced in Mexico using local glacier water. Many roasters find Mountain Water decafs to be slightly sweeter and fuller-bodied, making them a popular choice for balanced, flavourful decaf offerings.
A Fresh Take on Decaf
With the Mountain Water Decaffeination Process, decaf no longer means sacrificing taste. You can enjoy the rich caramel, nutty, fruity or chocolatey notes of your favourite beans—just without the caffeine.
So if you are sensitive to caffeine, or simply want to enjoy a delicious cup later in the day, Mountain Water Decaf coffee offers the perfect solution: natural, sustainable and bursting with flavour.

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