[6] (The principal Egyptian standards from small to large were the ro, hin, hekat, and khar.
The vagueness of how these measures have been defined, redefined, and undefined over the years, both through written and oral history, is best exemplified by the large number of sources that need to be read and cross-referenced in order to paint even a reasonably accurate picture.
So far, the list includes the United States Pharmacopoeia,[10][11][12] U.S. FDA,[13] NIST,[14][15][16] A Manual of Weights, Measures, and Specific Gravity,[17] State Board Questions and Answers,[18] MediCalc,[19] MacKenzie's Ten Thousand Receipts,[20] Approximate Practical Equivalents,[21] When is a Cup not a Cup?,[22] Cook's Info,[23] knitting-and.com.,[24] and Modern American Drinks.
[25] Dashes, pinches, and smidgens are all traditionally very small amounts well under a teaspoon, but not more uniformly defined.
However, the 1954 Angostura “Professional Mixing Guide” states that “a dash” is 1/6th of a teaspoon, or 1/48 of an ounce, and Victor Bergeron (a.k.a.