Oregon Trail. Facts, information and articles about The Oregon Trail, a part of Westward Expansion from the Wild West. Oregon Trail summary: The 2,200-mile east-west trail served as a critical transportation route for emigrants traveling from Missouri to Oregon and other points west during the mid-1800s.
1 Preventing high blood pressure. 2  Some research in Chinese people shows that drinking 1 or 2 cups (4-20 oz or 120-599 mL) of oolong tea or green tea daily seems to prevent high blood pressure. 3  Drinking more tea seems to lower the risk even more. 4  Weak bones (osteoporosis).
How much caffeine is in oolong tea? The caffeine levels are similar in all types of tea and are dependent on steeping time. When steeped for 5 minutes, tea has about 50-70 mg of caffeine per cup of tea. Oolong tea is usually steeped for a much shorter time (less than a minute) so there is significantly less caffeine. In addition, oolong tea leaves can be brewed multiple times, and each time the caffeine levels decrease by about 75%. By the fourth infusion there is almost no caffeine left, but a good quality oolong tea will still have plenty of flavor. Back to Top