Soy Sauce (Light and Dark)

A fermented condiment of soybeans, wheat (or none, for tamari-style), salt, and a koji mold culture, aged for months. Light soy sauce is thinner and saltier; dark soy sauce is aged longer with added caramel for color and a slightly sweet, molasses-like depth.

Flavor Profile

Light: salty and savory-umami, sharp. Dark: sweeter, thicker, and less salty per volume, contributing color as much as flavor.

Culinary Uses

Light soy sauce for seasoning and dipping; dark soy sauce for braising (red-cooking) and adding color to stir-fries.

Regional Variations

Japanese shoyu is generally milder and rounder than Chinese soy sauce; Indonesian kecap manis is a sweetened relative rather than a direct variant; tamari (Japan) is wheat-free.

Storage

Unopened, keeps well over a year in a cool pantry; refrigerate after opening for best flavor retention, though not strictly required due to salt content.

The English word "ketchup" is etymologically linked to this condiment family via Hokkien "kê-tsiap" (fish sauce) and Malay "kecap".