Caffeine:
Green tea contains very low levels of caffeine, less than a quarter the amount of caffeine per cup than in a similar-sized cup of coffee. More about caffeine.
Steeping Instructions
Steeping green tea is easy. Simply heat fresh, filtered water just short of boiling. Then pour water over tea and steep for 1-3 minutes (if using a tea bag) or 2-4 miuntes (if using full-leaf tea.)