The amount of caffeine in a cup of coffee can vary based on the type, serving size, method of preparation, and bean variety, among other factors. Coffee is the biggest dietary source of caffeine.
Caffeine is a naturally occurring substance in coffee beans, tea leaves, cacao pods, and kola nuts (a fruit). And some medicines, foods, and drinks contain synthetic caffeine. Too much caffeine can ...
Knowing which type of coffee to reach for will help you fine-tune your morning or afternoon jolt of caffeine. Katherine Peach is a well-caffeinated, Brooklyn-based writer, who focuses on all ...