Journalist Murray Carpenter has a new book out next week titled Caffeinated: How Our Daily Habit Helps, Hurts, and Hooks Us. As Scientific American summarizes, “His book examines the caffeine industry, the coffee and other products it churns out, and the complex effects the chemical has on our bodies.” Kirkus Reviews says that “Carpenter blends intriguing historical episodes with interviews, accounts of treks to caffeine-related locations and a multitude of test results.”
For a preview of some of the book’s themes, Maddie Oatman of Mother Jones interviewed Carpenter. Take the following as just one example of the lessons learned in his research:
There’s no standard amount of caffeine in each cup of coffee—even within the same brand.
“Starbucks gives an approximation of 20 milligrams per ounce. One 16-ounce cup of Starbucks puts you at about 320 milligrams of caffeine. One 16-ounce cup of Starbucks is for many Americans a good daily dose of caffeine.
“One researcher found that a 16-ounce cup had 560 milligrams of caffeine. The researcher, Bruce Goldberger, went to the same Starbucks and ordered the same blend of coffee for six days, and found that the levels varied more than twofold. He’s not the only one to have found those things. Even espresso shots, which are much more regimented, can vary.”
Check our her full post here.