Using Metric Measures

This book gives quantities in both American cup and metric measures. Metric equivalents of American cup measures are shown in parenthesis, like this: 1 cup (175 g) rice. Never change between American cup and metric measures in the same recipe; they are not interchangeable. Exact conversion from American to metric measures does not usually give convenient working quantities, so the metric measures have been rounded off to units of 25 grams. For example, 1/2 cup of flour, which equals 57 g, is rounded off to 50 g; 1 cup of flour (113 g) is rounded off to 100 g.

The same principle applies to the milliliter measurements. For example, 1/2 cup, which equals 118 ml, is rounded off to 125 ml; 1 cup, which equals 236.6 ml, is rounded off to 250 ml.