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Example formulas
Washed extract (with multiple sources of ethanol)
Calculating items 9 and 10 for this extract is more complex than the previous examples.
| Step 1. Item 9 calculation – Locate the eligible ethanol in the formula. The only source is the 190 proof ethanol (pounds of ethanol are converted to gallons as in the previous examples). Note that the Lemon Extract has a TTB approval for drawback. first, multiply the volume of 190 proof ethanol (8.10 gallons) by the % ethanol 8.10 gallons × 0.95 = 7.70 gallons of absolute ethanol Next, divide by the final yield low end of yield range high end of yield range This provides the range for the eligible alcohol in item 9.
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Step 2. Item 10 calculation - For this, a determination of the concentration of the ethanol in the starting menstruum must be made (ethanol and water along with other dissolved components (not the oil!)).
| Volume of Starting menstruum = sum of all soluble components | ||
| Ethanol = | 55.0 pounds ÷ 6.794 pounds/gallon = | 8.10 gallons |
| Lemon Extract = | 0.14 gallons | |
| Glycerin = | 23.0 pounds ÷ 9.79 pounds/gallon = | 2.35 gallons |
| Water = | 15.0 pounds ÷ 8.328 pounds/gallon = | 1.80 gallons |
| ___________________________________________ Sum = 12.39 gallons of starting menstruum | ||
Use the sum (12.39 gallons) in the denominator of the following equation:
Item 10 = [gallons of absolute ethanol] ÷ [volume (in gallons) of starting menstruum]
Where gallons of absolute ethanol = 190 proof ethanol + ethanol from TTB # 8180
8.10 gal × 0.95 = | 7.70 gallons of absolute ethanol |
0.14 gal × 0.671 = | 0.09 gallons of absolute ethanol |
| ___________________________________________ Sum = 7.79 gallons of absolute ethanol | |
Divide this number by the volume of the starting menstruum to get item 10 7.79 gallons of absolute ethanol ÷ 12.39 gallons = 0.629 or 62.9%
For extracts, the tolerance used for filtered products is applied to item 10 (see the tolerance table).
Click here to find worksheets to help you calculate items 9 and 10.