Instant coffee is made from brewed coffee that has been freeze-dried or spray-dried. It is generally in large, dry pieces, which dissolve in water. To prepare instant coffee, simply mix one or two teaspoons of dried coffee with hot water. Instant coffee usually contains less caffeine than regular coffee, with one cup containing roughly 30–90 mg ( 4). Decaf CoffeeĪlthough the name may be deceiving, decaf coffee is not entirely caffeine free. It may contain varying amounts of caffeine, ranging from 0–7 mg per cup, with the average cup containing 3 mg ( 5, 6, 7). However, some varieties may contain even higher amounts of caffeine, depending on the type of coffee, method of de-caffeination and cup size. The average caffeine content of an 8-oz, brewed cup of coffee is 95 mg. A single espresso or espresso-based drink contains 63 mg, and decaf coffee contains about 3 mg of caffeine (on average). Some commercial coffee brands contain more caffeine than regular, home-brewed coffee.Ĭoffee shops are also notorious for their large cup sizes, which can range up to 700 ml (24 oz). The amount of coffee in such cups is equivalent to about 3–5 regular-sized cups of coffee. Starbucks is probably the best-known coffee shop in the world. It also offers some of the most caffeinated coffee available. The caffeine content of brewed coffee at Starbucks is as follows ( 8, 9):įurthermore, one shot of espresso at Starbucks contains 75 mg of caffeine.Ĭonsequently, all small, espresso-based drinks also contain 75 mg of caffeine. This includes lattes, cappuccinos, macchiatos and Americanos, among others ( 10). Larger sizes, which are made with two, or even three, espresso shots (16 oz), likewise contain 150 or 225 mg of caffeine.ĭecaf coffee from Starbucks contains 15–30 mg of caffeine, depending on cup size. Bottom Line:Īn 8-oz, brewed coffee from Starbucks contains 180 mg of caffeine. A single espresso and espresso-based drinks contain 75 mg, while an 8-oz cup of decaf coffee contains about 15 mg of caffeine. However, despite being one of the biggest fast food chains that sells coffee, they do not standardize or calculate the amount of caffeine in their coffee.Īs an estimate, the caffeine content of their brewed coffee is about ( 11): McDonald’s sells coffee all over the world, often under their McCafe brand. Their espresso contains 71 mg per serving, and decaf contains 8–14 mg, depending on the size of the cup. McDonald’s doesn’t standardize the amount of caffeine in their coffee. Espresso contains about 71 mg, and decaf has about 8 mg.Īs an estimate, a small cup of brewed coffee contains 109 mg of caffeine. The caffeine content of their brewed coffee is as follows ( 12): Dunkin Donutsĭunkin Donuts is another chain of coffee and donut shops that is very popular worldwide.
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