How to test to see if something has caffeine in it?

[sygyzy]

Is there some way I can test to see if a cup of coffee is caffeinated or not? Nevermind "ask the office lady." I am curious if there is a way to test using supplies or ingredients that can be readily found around a home or office.

Thanks.

 

[ShadowBlade]

drink it when tired and see what happens an hour or so later

 

[DaFanMan]

Drink it, if you get the shakes its caffinated?

All kidding aside not sure if theirs something out there to do this or not.

 

[destrekor]

i do not know of any consumer products to test for caffeine. its a chemical, and would require chemical testing supplies
and ALL coffee has caffeine, just to let you know
decaf contains minute traces though, such as 5-10mg of caffeine, far away from anything that could keep you awake or add any energy. thats about a third of a can of coke (somewhere around 30-40mg of caffeine in a can of coke)

 

[sygyzy]

Thanks for the replies. The story is I bought a bag of coffee at Coffee Bean and had the girl grind it for my espresso machine at work. I noticed a few days later that the bag said DECAF on it, even though I didn't order decaf. I drink enough coffee and am generally pretty upbeat so I don't get the "shakes" or excited when I drink coffee. That being said, I can't just "tell". It's not like alcohol where it's obvious that I am drunk or something.

I realize that it'd take a chemical test but there are definitely some household tricks you can use to test for various substances. Like baking soda plus vingegar. Acid + base. That's the type of "elementary science" I am looking for.