How much caffeine is in a standard cup of coffee?
"Standard" is a bit of a misnomer, since coffee comes in so many sizes and varieties these days. Once upon a time, a standard diner cup of coffee was 6 ounces. Made from instant, a 6 ounce serving has about 50mg of caffeine. But 6 ounces of percolated coffee, contains about 150mg of caffiene.
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