Which coffee has the most caffeine?

Per cup, cold brew and Vietnamese robusta coffee usually top the list. Robusta beans have nearly twice the caffeine of arabica. A single espresso has less caffeine than a big mug of filter coffee.

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More on starting out

• I'm new to coffee. Where do I start?
• What's the difference between a latte and a cappuccino?
• What's the difference between espresso and a latte?
• What is a flat white?
• Arabica or robusta: which is better?
• Light roast or dark roast?
• What's the easiest way to make good coffee at home?
• Do I need a grinder?
• Whole beans or ground coffee?

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