Decaffeination removes about 97% or more of the caffeine in coffee beans. A typical cup of decaf coffee has about 2 mg of caffeine, compared to a typical cup of regular coffee, which has about 95 mg of caffeine.

Does decaf coffee have enough caffeine?

Although there is some caffeine in decaf coffee, the small amount of caffeine isn't really enough to affect most people, Sampat said. ... "The tiny amount of caffeine in decaf could also be a potential issue for anyone trying to avoid or minimize caffeine intake due to a medical condition.

How much caffeine is in a cup of decaffeinated coffee?

According to the United States Department of Agriculture (USDA), a typical 8 ounce (oz) cup of decaf coffee contains 2 milligrams (mg) of caffeine. However, the caffeine content can vary by brand, with some decaf coffees containing up to 15 mg per 8 oz cup.