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The number of teaspoons in 1 pound of a substance is the reciprocal of the substance's density in pounds per teaspoon. Because teaspoons are a measurement of volume and pounds are a measurement of mass, the number of teaspoons in a pound depends on the density of the substance in question.

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An eighth of a teaspoon is usually regarded in culinary measurements as .5 milliliters and is called a pinch. The United States customary unit for a teaspoon is equivalent to a third of a tablespoon, 4.928921599375 milliliters, 1/6 of a U.S. fluid ounce or 1/48 of a U.S. cup.

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¾ of a teaspoon is equal to ¼ of a tablespoon, roughly 4 milliliters or 1/8 of a fluid ounce. One teaspoon equals ⅓ of a tablespoon, 5 milliliters or ⅙ of an ounce. Most sets of measuring spoons do not include a ¾ teaspoon, so it’s usually necessary to use three ¼ teaspoons instead. Alternatively, if

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A teaspoon is the same size as 1/6 fluid ounces. A teaspoon is also equivalent to 4.92892 millimeters or 0.4929 centiliters.

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One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons. One method of finding the answer in the fraction form of 3/8 is to multiply the fraction 1/2 by 3/4.

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Half of a 1/4 teaspoon would be 1/8 teaspoon. Knowing how to cut measurements down or increase measurements is a very important tool to understand, especially when making less of a recipe or cooking for a crowd, which often requires increasing the amounts of the ingredients used.

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When measuring dry ingredients or liquids, 6 teaspoons, or 2 tablespoons, is equal to 1 ounce. This converts to 30 grams when using a metric measurement. While many American cookbooks use volume to measure ingredients, throughout much of the world, weight is more commonly used to measure ingredients

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A teaspoon holds 0.1667 fluid ounces or 4.929 milliliters. Other equivalents are 1.333 fluid drams, 80 minims and 4.929 cubic centimeters. It is also one-third of a tablespoon. This is the standardized measure of a teaspoon as used by cooks.

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To measure out a level teaspoon precisely, take a measuring teaspoon and fill it with the substance you need to measure. Scrape something with a flat edge across the top of the spoon to level off the teaspoon.

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If using a standard dropper where 20 drops equal 1 milliliter, approximately 98 drops fit into a U.S. teaspoon. The number of drops can be more or less depending on the size of the dropper.