Chapter III
The Spirit Run
Refine the charge, add charge water if needed, and plan the cuts.
Spirit Run Parameters
Charge volume and ABV stay fixed; added water raises charge volume and lowers charge ABV.
Run Charge
4.00L
Run ABV
95.00%
Pure Alcohol
3.80L
Concentration
0.42×
Yield
237.5%
Suggested Cuts
Guidance only — the nose and the tongue are the final judges.
Foreshots · discard
57 mL
Rule of thumb: ~10 mL for this charge.
Heads
304 mL
Solvent-like, sharp. Save as feints.
Hearts · keep
2470 mL
The clean centre — sweet, round, true spirit.
Tails
969 mL
Wet cardboard, oily. Save as feints.
Distribution based on pure-alcohol volume: ~1.5% foreshots · 8% heads · 65% hearts · balance tails.
Dilution Calculator
Add water to bring a high-strength spirit down to bottling strength. Always add spirit to water, not water to spirit.
Add Water
1.750L
Final Volume
3.750L
Water needed = Volume × (Current ABV ÷ Target ABV − 1). All values in litres and % ABV.