Turkish Coffee: A strong brew made with finely ground coffee beans, often unfiltered, delivering a high caffeine kick due to its dense concentration.
Espresso: Known for its high caffeine concentration, a single shot of espresso can pack a punch, with about 63 mg of caffeine per ounce.
Ristretto: A more concentrated version of espresso, with the same amount of coffee but half the water, resulting in a stronger flavor and higher caffeine concentration per ounce.
Drip Coffee: Common in the U.S., this method can vary in caffeine content based on the coffee-to-water ratio, with an average of 95 mg per 8-ounce serving.
French Press or Plunger Coffee: This brewing method allows for more caffeine extraction due to the longer steeping time and the use of coarsely ground beans.