Decaffeinated coffee, often called "decaf," is coffee that has had at least 97% of its caffeine removed. It allows people to enjoy the taste and aroma of coffee without the stimulating effects of caffeine. The decaffeination process occurs before roasting and involves various methods, including solvent-based methods, the Swiss Water Process (using water and carbon filtration), and the use of carbon dioxide (CO2). The Swiss Water Process is often favored for being chemical-free and preserving the coffee's flavor. Although decaffeination removes most of the caffeine, a cup of decaf coffee typically contains between 2 to 15 mg of caffeine.
The decaffeination process can slightly alter the flavor profile, generally making it milder and less bitter compared to regular coffee. Some aromatic compounds are lost during decaffeination, which can reduce the nutty and roasted aromas. However, advanced techniques aim to minimize these changes, and many find that modern decaf coffees closely resemble their caffeinated counterparts, retaining subtle caramel or nutty undertones. Decaf coffee is available from numerous manufacturers and roasters, including Peet's Coffee, Stumptown, and Blue Spruce Decaf Coffee Co. It comes in various forms, such as whole bean, ground, and single-serve pods.
The price of decaf coffee can vary. Grocery store decaf can be three times more expensive than caffeinated coffee due to the decaffeination process and lower demand. However, online specialty coffee shops often price decaf within 10% of their caffeinated versions. For example, a 12-ounce bag of Stumptown's whole bean decaf coffee costs $16, while Blue Spruce Decaf Coffee Co. offers several organic decaf options for $22.99. Firehouse Coffee offers flavored decaf coffees starting at $17.95. Decaf coffee is widely available through online retailers like Amazon and Walmart, as well as in grocery stores and specialty coffee shops.