Comments by "EebstertheGreat" (@EebstertheGreat) on "The argument for cooking with volume measurements, rather than weight" video.
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An annoying historical fact is that the U.S. fluid ounce is somewhat but not too close to the imperial fluid ounce. One imperial fluid ounce of water at 4 C at atmospheric pressure weighs about 1 ounce, as you would expect. But one U.S. fluid ounce is about 4% bigger, so it weighs more like 1.04 ounces. At other temperatures, it will weigh less, but generally still more than an actual ounce. Thus, a pint is not a pound the world around. A pint of water is usually more like 16.5-16.6 ounces, or about 1.03-1.04 pounds. And of course in England, a pint is 20 imperial fluid ounces, not 16, so it isn't a pound there either.
I know a difference of a few percent doesn't really matter for most cooking, but it is still slightly irritating.
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