In this lab, students will determine the amount of caffeine in a beverage. Students will determine the retention time of pure caffeine. From this information, students will be able to identify the ...

Is your caffeinated buzz from a natural or artificial source? Researchers in Germany have now developed an easy way to determine whether drinks contain natural or synthetic caffeine (Anal. Chem., DOI: ...

Consumer Reports analyzed caffeine levels in both instant coffees and takeout brews — and found they can vary widely. In some ...

Black, green, oolong, and white tea come from the Camellia sinensis plant — also known as the tea plant. The leaf extract is the oil from its leaves (1). Camellia sinensis or tea leaf extract has ...

Nutritionists share the best low-sugar energy drinks with 200 milligrams or less of caffeine for a boost to your stamina from ...