Black Tea Caffeine Content

According to the Mayo Clinic, and other sources, the breakdown on various drinks (one cup, or 8 oz.) and caffeine is as follows (in mg.):

1. Decaf black tea • 2
2. Coffee decaf • 2
3. Green tea • 8-36
4. Black tea • 50
   
5. Coffee (plain) • 47-68
6. Espresso • 64
7. Coffee, Drip, regular •106-164
8. Starbucks Caffe Latte, 16 oz. • 150
   
9. Starbucks Coffee Grande, 16 oz. • 330
   

References

1. http://www.holymtn.com/tea/caffeine_content.htm
2. Mayo Clinic. http://www.mayoclinic.com/health/caffeine/AN01211 (Accessed Dec 21 2008)