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How Big Is a Coffee Cup? The Answer Isn't Obvious

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Summary
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65% Informative

A coffee cup on your drip coffee maker may not be as big as you think it is.

It turns out to be a strange and elusive measurement, somewhere between 4 and 6 fluid ounces.

The size of a coffee cup hasn’t really changed much since the invention of the electric drip coffee machine.

An average American coffee mug, meanwhile, runs between 8 and 12 ounces .

After Starbucks , coffee cups got bigger.

Coffee maker companies have no particular incentive to change their cup sizes.

You'll need 2 “cups” for one serving, at least if you drink out of a 10-ounce coffee mug that’s now considered standard.