What makes one cup? Unraveling the world of kitchen measurements
                                
                                
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                                    4 min read                                
                            
                                According to the National Institute of General Medical Sciences, a standard U.S. measuring cup equals 8 fluid ounces. However, a coffee maker's "cup" is often 4-5 fluid ounces, highlighting that the answer to what makes one cup is not always straightforward. The seemingly simple unit is fraught with historical and regional complexities.