BOSO Rhum Mer-海- Cuvée spéciale BAGASSE MACERATION2026

63.7% ABV / 350ml / JPY 4,500 (excluding tax)

A High-Ester Rum Distillate Crafted with Our Original “BAGASSE MACERATION®︎” Method

Since its founding, Péninsule Boso has been dedicated to the research and development of high-ester rum. From this pursuit came our original, patent-pending method: BAGASSE MACERATION®︎. By incorporating bagasse — the fibrous residue left after pressing sugarcane — into our fermentation design, this distinctive method encourages naturally occurring microorganisms and yeasts to develop organic acids and a wide spectrum of ester aromas. This limited bottling presents the raw spirit born from that process. It offers a vivid and complex ester profile, supported by a rich, weighty sweetness on the palate. As the first release in our evolving Japanese high-ester rum project, we invite you to enjoy it while imagining the terroir of Minamiboso and the future of Japanese rum.