Auchentoshan has two expressions named Springwood and Heartwood , both exclusive to travel retail (at least they once were). While Springwood is a bourbon-matured release, Heartwood uses deeply charred bourbon casks and Spanish Oloroso sherry casks. The term refers to the rich core heart of the tree.
Auchentoshan Heartwood is said to be around 7 years of age. Unfortunately it’s also coloured with E-150.
Auchentoshan Heartwood (43%, OB 2015)
Nose: a rather dry, almost grassy kind of sherry. Hints of wood chips, giving it a green touch. Orange oils and lime zest, yellow raisins and toffee. Apple peel...
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