The quick answer is "no, decaf is not caffeine-free."
Decaffeinated coffee is not completely caffeine-free — it still contains a small amount of caffeine.
Here’s the breakdown:
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A regular 8 oz (240 ml) cup of coffee contains about 80–100 mg of caffeine.
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An 8-oz cup of Mountain Thunder decaf coffee typically contains 2–5 milligrams of caffeine, although this amount can vary slightly. A can of 12-ounce Coca-Cola, for comparison, has 34 milligrams.
So while decaf has had most of the caffeine removed (usually 97% or more), it’s not entirely caffeine-free. For most people, this exceedingly small amount of caffeine will be imperceptible.
