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Fortification Calculator

Calculate spirit additions, sweet reserve blending, and integrated port-style fortification targets.

Fortification

Solve the spirit addition needed to raise wine to a target ABV.

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Results

Spirit Addition

10.17 gal

77.0% spirit

Final Volume

110.17 gal

After fortification

Spirit Share

9.2%

Share of the final blend

Method

Pearson / mass balance

Straight fortification solve

Add 10.17 gal of 77.0% spirit to raise the wine from 12.0 to 18.0% ABV.

Spirit addition10.17 gal
Final volume110.17 gal
Warnings
Blend slowly and confirm the realized ABV analytically after homogenization.