Shun (旬) is the Japanese concept for the precise moment an ingredient reaches peak flavor, freshness, and nutrition. Learn what shun means, how its three seasonal phases work as a practical shopping framework, and how to apply this ancient wisdom in your own kitchen with Japanese pantry staples from Tomato Japanese Grocery.

Discover how Japan's tsuyu rainy season shapes its comfort food traditions, from cold sōmen and hiyashi chūka to warming zenzai, the ancient ume shigoto plum ritual, and the poetic wagashi sweets that capture the season's beauty.