Shinan tidal flats — the only sedimentary tidal flat among the world's five great tidal flats, and a designated biosphere reserve. Our entire journey begins on this pristine land, where every breath is clear and pure. Sun-dried sea salt harvested from this living landscape refines itself through ten cycles of the seasons to become the most noble of raw materials. Through ten years of patience — releasing its bitterness to the harsh winds and drawing purity from the warmth of the sun — the salt sheds its toxins and is reborn as a crystal of life, holding only the energy of microorganisms and the essence of minerals.

Within 10-year-aged sea salt, archaea that have survived for thousands of years meet robust indigenous microorganisms to form a habitat of halophilic Paleozoic microorganisms. BAC1's proprietary biotechnology, 'SaltBiome™', condenses the vitality of these tidal flats over a decade. Going beyond mere extraction, this refined aging process cultivates microorganisms directly within the salt — and through it, we finally obtain our core ingredient, BV1™.