Here’s the truth bomb: decaf coffee is not caffeine-free. Surprise! The FDA allows decaf coffee to contain up to 97% of its original caffeine removed.
That means a typical cup of decaf still has about 2 to 5 milligrams of caffeine. Compare that to a regular cup’s 95 milligrams, and you’ll see why it’s mostly a ghost of its former self.
How Do They Even Do That?
Think of decaf as a coffee bean that went through a spa day. They soak the green beans in water, solvents, or carbon dioxide to draw out the caffeine.
Some methods are “natural,” using water and charcoal. Others use chemical solvents like ethyl acetate—which sounds scary, but trust me, it’s safe and rinses away completely.
And here’s the fun part: a tiny bit of caffeine always clings on, like that one friend who never leaves the party. It’s practically impossible to get every molecule out without turning the bean into a sad, soggy mess.
