The caffeine level in coffee can vary due to the brewing method used. This listing is referring to coffee made using Arabica coffee beans. For coffee made using Robusta beans, see here.
Brewed coffee refers to any method of coffee preparation where hot water comes in contact with coffee grounds for an extended period of time. Generally, for brewed coffee, two tablespoons of ground coffee is used per 6 fluid ounces of water.
Coffee Brewing Techniques
There are a number of techniques in brewing coffee: concentrate brewing, Turkish or Greek, vacuum brewing, percolating, or the French press (also called press pot or plunger coffee) and drip or filter coffee.
Coffee Caffeine by Brewing Methods
Like all coffee drinks, caffeine levels vary greatly - due to variations in the coffee blend, the exact amount of ground coffee used, and brewing technique.
|Brewed Coffee Type||Caffeine per 8 fl. oz.|
|Drip or Filter||115-175mg with an average of 145mg|
|French press or plunger||80-135mg with an average of 107.5mg|
|Percolated||64-272mg with an average of 200mg|
|Boiled (Turkish or Greek)||160-240mg with an average of 200mg|
The value of caffeine in brewed coffee featured above is an average, with values generally between 64 and 272 milligrams per cup.
Because brewed coffee requires that the water is in contact with the grinds for a long time, this leads to a higher caffeine concentration (and sometimes an over-extracted taste).
Drip Coffee (Filter Coffee) is the Most Popular
Drip coffee or filter coffee is perhaps the most popular form of brewed coffee, at least in the USA. This is the method used by Starbucks, Dunkin Donuts, McCafe as well as countless other restaurants.
Even K-cups are a type of drip brewed coffee.
Caffeine Content of Coffee Brands
Drill down into caffeine amounts for each outlet.
- Dunkin Donuts
- Tim Hortons
- Dutch Bros
- Keurig K-cups
- Seattle's Best
- Caribou Coffee
- Costa Coffee
- Caffe Nero
Where To Buy Coffee
Ingredients in Coffee
Water and 100% Arabica Coffee Beans
Sugar content: Contains no sugar.Compare sugar levels of other drinks
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Coffee contains 20.38 mgs of caffeine per fluid ounce (68.90mg/100 ml).