No, it's not an April Fools' joke — we're launching Japanese Wine Co. Decanter-winning Grace Wine from Yamanashi and Kazumi's Napa-grown Koshu, now shipping to California and D.C.

Why does Japan love things that disappear? The kisetsu gentei (季節限定) tradition, one Hokkaido roastery's four-seasons coffee, and the summer blend in our shop now.

Matcha with a shot of coffee poured through it. Where the dirty matcha came from, how much caffeine is in one, how to layer it — and how I make...