TOKYO -- When entrepreneur Benjamin Knopp moved to Tokyo in 2017, he was eager to explore the world of sake but had no clue where to begin.

Philipp Maas, left, and Benjamin Knopp, want to "make it as easy as possible for people to find sake that they would like without having to be an expert." (Photo by Yuki Kohara)
TOKYO -- When entrepreneur Benjamin Knopp moved to Tokyo in 2017, he was eager to explore the world of sake but had no clue where to begin.