Jim Rion is a licensed international kikizakeshi (sake sommelier), certified sake professional, and freelance translator and writer working in the sake industry since 2018. He has lived in Yamaguchi Prefecture since 2004. He took his first sake brewery tour in 2008, and with it discovered a whole new world to explore.

Melinda Joe is an American journalist based in Tokyo, Japan. Her food writing has appeared in publications such as Newsweek, The Wall Street Journal, CNN, and Departures Magazine and has been translated into four languages. She writes about Japanese drinks in her column for The Japan Times, "Kanpai Culture." A certified sake and wine specialist, she is a panel chair for the sake division at London's International Wine Challenge.