We’re guessing he needed another use for his supercritical drying chamber, so after looking over a few patents, he decided to make pure caffeine in his garage. The extraction began with green ...

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 ...

While the “caffeinated” label on certain tea products is self-explanatory, there’s much confusion over decaffeinated vs. caffeine-free tea. There’s a difference between the two descriptors.

People tend to confuse decaffeinated and caffeine-free teas, but knowing the distinction between the two is important if you want to know how to select the perfect brew. Caffeine-free teas like ...