Author name: Masa @ The Expat Japanese Home

Tokyo may dominate the market, but Japan’s regions fiercely defend their own soy sauce culture. Explore the history, science, and culinary pride behind local styles like Usukuchi, Tamari, Saishikomi, and Amakuchi.

Explore the evolution of Japanese soy sauce packaging from the iconic red-capped glass dispenser to modern vacuum-sealed containers. Discover how high-tech, double-walled squeeze bottles solved the battle against oxidation and sparked the rise of raw soy sauce (Nama Shoyu).