Jul 30 2009
How Much Caffeine Is In That Cup Of Coffee?
Do you ever wonder how much caffeine there actually is in a cup of coffee? I came across the following list at Wikipedia and thought I’d share.
- Drip coffee: 115–175 mg (560–850 mg/L)
- Espresso: 60 mg (2000 mg/L)
- Brewed/Pressed: 80–135 mg (390–650 mg/L)
- Instant: 65–100 mg (310–480 mg/L)
- Decaf, brewed: 3–4 mg
- Decaf, instant: 2–3 mg
These numbers are for an average cup of coffee or espresso. As you can see using the drip method seems to get the most caffeine out of the ground coffee beans.
In case you are wondering, it is usually considered safe to consume up to 300 mg of caffeine per day, which would be the equivalent of about 2 cups of coffee. Women who are pregnant may want to consume less than that or completely give up caffeine just to be save.
Speaking of giving up coffee… our bodies develop quite the physical addiction to caffeine and you can expect some withdrawal symptoms if you have been consuming it regularly. They include headaches, muscle aches and irritability. These symptoms should stop after a few days without caffeine.
Here are some other things that contain caffeine, just for the sake of comparison:
- Black Tea 45 mg
- Green Tea 20 mg
- Coca Cola 34 mg
- Dark Chocolate (1oz) 20 mg
photo credit: EverJean