All distilling blends 
BSY-BLEND-002
Heartwood
Grain Whisky
Restrained esters with prominent cereal and honey character. One strain provides a malty, full-bodied backbone while the other adds smoothness. A traditional, understated spirit that lets barrel character lead during maturation.
Specifications
- Spirit type
- Grain Whisky
- Wash attenuation
- 69-77%
- Ethanol yield
- Moderate
- Temperature range
- 13-22C
- Distilling temperature
- 18-20C
- Sulphur tendency
- Low
- Alcohol tolerance
- 12%
- STA1 (diastatic)
- Negative
Flavour Profile
Technical Specifications
Ester Intensity 3/10
Congener Complexity 4/10
Phenolic Character 1/10
Fermentation Speed 5/10
Flavour profiles based on strain lineage research and fermentation science. Validation trials in progress (Grainstock 2026).