Although coffee tastes great and can help you start your day, not everyone wants to have caffeine.
Decaf coffee might seem like a good alternative, but is it truly caffeine-free?
Quick Answer: How much caffeine is in decaf coffee?
Decaf coffee has roughly 2 to 15 mg of caffeine per cup (237 ml). Therefore, it isn't 100% decaf. However, the quantity of caffeine in decaf is relatively low compared to regular coffee, which contains about 95 mg.
Read on to learn why decaf coffee isn't entirely caffeine-free and what you can drink instead!
Is decaf coffee truly caffeine-free?
Decaf coffee is not truly caffeine-free. A cup (237 ml) of decaf has an average of two to five milligrams of caffeine. (Source)
That's a smaller quantity of caffeine than the 80 to 100 milligrams found in a regular cup of coffee.
If you drink decaf coffee once a day, the small amount of caffeine it contains may not even affect you.
But while five milligrams of caffeine doesn't seem like much, it can add up if you have multiple servings.
Like regular coffee drinks, decaf coffee is made from natural coffee beans, and every coffee bean contains at least six milligrams of caffeine.
We make decaf coffee by removing the caffeine from the coffee beans. But unfortunately, this process is not perfect; no decaffeination process can completely remove all the caffeine from the coffee beans.
Decaffeination methods
Several decaffeination processes are employed to produce the finest decaf coffees. Here are the four major methods of decaffeination:
- Swiss water method
- Carbon dioxide method
- Indirect solvent method
- Direct solvent method
Let's explore each method and its level of effectiveness:
The Swiss water method
Over the past few years, the Swiss Water method has become the most widely used and effective decaffeination process.
It's the best way to remove caffeine from beans while retaining flavor compounds.
Swiss water decaffeination is an organic process that utilizes the principles of osmosis.
The process begins by extracting caffeine from the beans through soaking in hot water.
After this, the beans pass through an activated charcoal filter that absorbs the caffeine without removing all the flavor compounds.
Swiss water decaffeination is considered the best method, but it's still not 100 percent effective.
It removes approximately 99.9% of the caffeine, leaving the decaf coffee beans with only 0.1% remaining.
The carbon dioxide method
The carbon dioxide method is the most recent and expensive decaffeination process.
It involves extracting caffeine from beans with carbon dioxide.
When beans come into contact with carbon dioxide for a long time, the carbon dioxide attracts the caffeine molecules and binds to them, leaving the beans caffeine-free.
To produce decaffeinated coffee through the CO2 process, the coffee beans must be soaked in a carbon dioxide solution for a certain amount of time.
Although the carbon dioxide method doesn't bind to all the caffeine, many still use it because it produces a cup of coffee with fewer byproducts.
It's hard to determine the exact amount of caffeine removed through the CO2 method.
It depends on how long the beans stay in contact with the carbon dioxide solution.
The indirect solvent method
The indirect solvent method utilizes chemicals to extract caffeine from coffee beans. It's less expensive than the carbon dioxide or Swiss water decaffeination processes.
However, it usually creates more byproducts.
To remove caffeine from beans using this process, you must soak them in hot water, then rinse them with solvent chemicals like ethyl acetate or methylene chloride.
Leave them to dry for some time, then roast them.
The indirect solvent process removes a significant amount of caffeine, leaving approximately 3% of the caffeine in the coffee bean.
The direct solvent method
Direct solvent decaf is similar to the indirect solvent process. The main difference is that you soak the beans in the chemical solvent, rather than just rinsing them.
Therefore, the beans have more direct contact with the chemical solvents.
Soaking the beans in a solvent extracts caffeine and other compounds. Then, you drain the beans to remove the excess solvent.
Why the decaf process fails to produce 100% decaf coffee
Why don't we leave the beans in carbon dioxide, hot water, or activated carbon until all the caffeine evaporates?
The truth is, decaf producers take the beans through different rounds of caffeine extraction.
But still, some stubborn milligrams of caffeine refuse to leave. It's not an exact science that prevents a 100% success rate.
The law of diminishing returns makes it impossible to extract all the caffeine from the coffee. Basically, the first few rounds of caffeine extraction will yield the most results.
But as more rounds are performed, less and less caffeine is removed. Ultimately, some remaining caffeine molecules are inevitable.
As such, decaf coffee doesn't have to be 100% decaf. According to the FDA, decaf coffee must be at least 97% caffeine-free to be labeled as such.
Non-caffeinated alternatives to decaf coffee
You must be disappointed knowing that decaf coffee still contains some milligrams of caffeine.
However, if you want a hot morning beverage, here are some tasty options that don't have caffeine:
- Herbal tea. Many herbal teas don't contain caffeine. These include peppermint, ginger, hibiscus, and chamomile. However, you should still watch for blends containing green or black tea since these are caffeinated.
- Chicory root drink is a good alternative to coffee. Its appearance might suggest that it is coffee. However, chicory drink is made from chicory plants and has a pleasant flavor.
- Golden milk. It has zero caffeine, and its primary ingredients include milk, turmeric, black pepper, and ground ginger. Other flavors, such as cinnamon or cloves, can enhance its taste.
Conclusion
Decaf coffee is not truly caffeine-free. Most decaf coffees contain about three percent caffeine, a small amount compared to regular coffee.
Consider alternatives like herbal tea, chicory root, and golden milk if you want a caffeine-free drink.
These drinks are caffeine-free, and some of them even have a similar taste to coffee!
