Liquid Measures

The most-accurate and well-marked heatproof plastic and glass measuring cups I have found are made by POURfect and Anchor Hocking (see Equipment Sources). A cup of water, read below the bottom of the meniscus (the curved upper surface), should weigh close to 8.3 ounces/236 grams to be acceptable. If using a metric cup, this is equal to 236 milliliters (as milliliters are based on the weight of water). The standard metric cup is 250 milliliters, about 1 tablespoon more than the standard U.S. cup.