Last year, I was introduced to this Hayashi Okinawa Japanese Whisky while attending a Women Who Whiskey event here in Boston. During this introduction, I had the opportunity to sample their current range of four expressions: Hayashi Koyo, Hayashi 8-Years, Hayashi 18-Years and Hayashi 24-Years. For their whisky production process, Hayashi utilizes a 500-year-old technique…