Ounce (Imperial): unit of volume refers to the imperial fluid ounce, which is part of the imperial system of measurement. The imperial fluid ounce is slightly smaller than its U.S. counterpart and is equal to 28.413 milliliters.
Teaspoon (US): is a unit of volume commonly used in cooking and culinary contexts. In the U.S. teaspoon equivalent to about 4.929 milliliters.
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