Caffeine levels in coffee vary dramatically depending on bean type, roast, and brewing method—ranging from a mild buzz to a full-blown jolt. Understanding these differences can help you tailor your coffee habit to your energy needs and tolerance. --- ☕ The Bean Behind the Buzz: Arabica vs. Robusta The caffeine content of coffee starts at the bean level. Robusta beans contain nearly twice the caffeine of Arabica beans—about 2.2–2.7% caffeine compared to Arabica’s 1.2–1.5% CoffeeAbout. Robusta is often used in instant coffee and high-caffeine blends, while Arabica is prized for its smoother flavor and is more common in specialty brews. --- 🔥 Roast Level: Light vs. Dark Contrary to popular belief, light roasts generally have slightly more caffeine by volume than dark roasts. That’s because roasting reduces the bean’s mass but not its caffeine content. So, scoop for scoop, light roast beans are denser and pack more caffeine. However, if you measure by weight, the difference is negli...
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