Why does the amount of caffeine in decaf coffee say a range of 3-15 mg of caffeine and not just one number?

So does that mean every cup varies with how much caffeine it has?

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  • geezer
    Lv 7
    5 months ago

    Because the process of de-caffeinating coffee isn't an exact science.

    Decaf just means reduced caffeine .. not no caffeine.

    There is no set amount that the coffee has to be decaffeinated to.

  • 5 months ago

    it means different ways of brewing the coffee effects the amount of caffeine in it.

    Thats the same for regular coffee too.

  • 5 months ago

    Yes, that is what it means.

    Because the process they use to decaffeinate it isn't ever going to be refined to anything more exact than that.

  • Because different coffees have different amounts. And everyone makes coffee differently - the amount of coffee used varies, the amount of water used varies.

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