![]() So does its caffeine levels, with roughly 30-50 mg of caffeine per cup. ![]() Oolong tea is a partially oxidized tea that many say tastes somewhere between green and black tea. Made from young leaves and buds, its caffeine content is reflective of its production, containing just 15-30 mg per cup. Similar to green tea, white tea is made with minimal processing and is the least oxidized of all types of tea. One cup of green tea ranges between 25-45 mg of caffeine. It’s made from unoxidized leaves and compared to other types of tea, involves the least amount of processing. Green tea is largely known for subtle flavors and its long list of health benefits. There are two primary species that are responsible for the majority of global tea consumption, giving rise to popular teas such as green, black, white, and oolong. Tea is a subtropical plant that thrives in mild, humid environments in many global regions. The caffeine levels are similar to drip coffee, with 90-100 mg per 8-ounce cup. Significantly weaker than espresso in terms of caffeine, a single 8-ounce cup contains roughly 95 mg of caffeine.įrench Press – Also known as a press pot or plunger pot, the French Press method involves soaking coarsely-ground coffee in hot water before separating the grounds with a metal or nylon mesh plunger. It works by passing hot water through coffee grounds that sit in a filter. Drip coffee makers, along with white coffee filters, are a staple in most American households. The result is a smooth, less acidic coffee that averages between 100-200 mg of caffeine per cup.ĭrip Coffee – Also known as filtered coffee, drip coffee is one of the most common brewing methods. The result is a small, yet concentrated liquid with rich flavor, containing about 63 mg of caffeine per 1 ounce.Ĭold Brew – A recently popularized technique, cold brew is prepared by soaking coarse coffee grounds in cold water for an extended period, at least 12-24 hours. The most popular coffee brewing methods are drip coffee, espresso, French press, and cold brew, all of which affect caffeine levels differently.Įspresso – Originating in Italy, espresso is brewed by forcing hot water through finely-ground coffee under high pressure. They have a higher caffeine content than Arabica, ranging between 2-2.7% by weight, which results in the increased bitterness. They’re more bitter and robust in flavor, with higher acidity levels and a stronger, earthier taste. Robusta beans, on the other hand, comprise about 30-40% of global coffee production. These beans are primarily grown in Central & South America, including Brazil, which is the world’s largest producer of Arabica. ![]() They typically contain 1-2% caffeine by weight. ArabicaĪrabica beans account for 60-70% of global coffee production and are characterized by delicate, nuanced flavors, and lower acidity. And though there are an estimated 100 coffee species in the world, there are two that drive 99% of coffee consumption: Arabica and Robusta. Types of Coffee Beans and Their Caffeine ContentĬoffee is a tropical plant that grows in warm, humid climates around the globe. In the case of tea, black tea contains more caffeine than green tea because it undergoes full oxidation green tea is only partially oxidized.īrewing Technique – Even moments before your cup is filled, the caffeine content can change based on water temperature, steeping time, and the coffee or tea-to-water ratio. dark roasts, for example, lighter roasts have slightly more caffeine than darker roasts. Processing Methods – Coffee endures a long process before it reaches your cup, and each stage can affect the amount of caffeine that you consume. For example, Robusta beans contain roughly twice as much caffeine as Arabica beans, whereas black tea is stronger than herbal tea blends, which contains no caffeine. Plant Variety – Different coffee beans and tea leaves contain varying levels of caffeine. ![]() What influences caffeine content?Ĭaffeine content in beverages like coffee and tea can vary greatly, and are influenced by three factors: plant variety, processing methods, and brewing techniques. It’s also found in medicines like Excedrin, Anacin, and Midol, as well as dietary supplements that are meant to suppress hunger. The most common sources of caffeine are coffee, tea, soft drinks, energy drinks, and chocolate.
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