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30 March 2014

LUEE Episode 77: Coffee & Tea

In this episode of Life, the Universe & Everything Else, Gem Newman discusses everybody's favourite caffeinated beverages with Ian James and Laura Creek Newman.

Life, the Universe & Everything Else is a program promoting secular humanism and scientific skepticism presented by the Winnipeg Skeptics and the Humanists, Atheists & Agnostics of Manitoba.

Links: Pesticide Traces in Some Tea Exceed Allowable Limits (CBC) | Caffeine Ingestion and Fluid Balance: A Review (Journal of Human Nutrition and Dietetics) | Caffeine and Carbonated Soft Drinks | Caffeine Addiction Is a Mental Disorder, Doctors Say (National Geographic) | Coffee: The Greatest Addiction Ever (CGP Grey) | Good News About Coffee and Amazing Skeptic Conference (Scientific American Podcast) | New Mountain Dew Recipe in Canada | Does the LDS Church Own Coca-Cola? (Snopes) | Kopi Luwak (Wikipedia) | Coffee Enemas (Science-Based Medicine, Wikipedia) | Yerba Mate (Wikipedia) | The True Benefits of Herbal Tea (The Daily Mail)

Approximate Caffeine Content

Caveats: Numbers listed for coffee assume a drip-brew method. Numbers listed for tea assume the tea is steeped for 3 minutes. Equivalent beverage sizes are provided for Tim Hortons and Starbucks, but these numbers do not necessarily reflect the caffeine content of any particular brand, roast, or blend of coffee.

Food ItemServingCaffeine
Coffee24 oz (Extra Large)394–600 mg
Coffee20 oz (Large, Venti)329–500 mg
Coffee16 oz (Grande)263–400 mg
Jolt Cola23.5 oz (695 mL)280 mg
Coffee14 oz (Medium)230–350 mg
Coffee12 oz (Tall)197–300 mg
EspressoDouble200 mg
Caffeine TabletExtra-strength200 mg
Coffee10 oz (Small)164–250 mg
Coffee8 oz (Extra Small, Short)131–200 mg
EspressoSingle100 mg
Caffeine TabletRegular-strength100 mg
Yerba Mate6 g mate powder85 mg
Red Bull8.5 oz (250 mL)80 mg
Mountain Dew12 oz (355 mL)54 mg
Lipton Iced Tea20 oz (600 mL)48 mg
Stash Earl Grey Black Tea8 oz48 mg
Exotica China White Tea8 oz37 mg
Stash Darjeeling Black Tea8 oz36 mg
Coca-Cola12 oz (355 mL)34 mg
Hershey's Special Dark Chocolate43 g31 mg
GuaranĂ¡ Antarctica12 oz (355 mL)30 mg
Stash Premium Green Tea8 oz29 mg
Hershey's Milk Chocolate43 g10 mg
Coffee (Decaffeinated)8 oz (Extra Small, Short)6–17 mg
Herbal Tea/TisaneAny amount0 mg

Sources: Caffeine Content of Brewed Teas (Journal of Analytical Toxicology) | Caffeine in Food (Health Canada) | Caffeine Content of Food and Drugs (Center for Science in the Public Interest) | Caffeine Database (Caffeine Informer)

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