What is soy sauce? Types and uses in Japanese cooking | Soluna Barcelona
Soluna · Eixample · Barcelona

What is soy sauce? Types and uses in Japanese cooking

Soy sauce, or shoyu, is a fermented condiment of soybeans, wheat, salt and water. It is the most recognisable salty, umami flavour of East Asia.
Cocina de Soluna, restaurante japonés en Barcelona
Cocina de Soluna, restaurante japonés en Barcelona
01

What is shoyu

Cooked soybeans and roasted wheat are mixed with koji and salt and left to ferment for months. The liquid is pressed, filtered and pasteurised. The slower the fermentation, the more complex the aroma.

Cocina de Soluna, restaurante japonés en Barcelona
Cocina de Soluna, restaurante japonés en Barcelona
02

Types of soy sauce

The most common is koikuchi, dark and balanced. Usukuchi is lighter and saltier and is used to avoid darkening dishes. Tamari, with little or no wheat, is denser and, depending on the brand, suitable for gluten-free diets. Saishikomi is made by fermenting soy with already-made sauce and is more intense.

Cocina de Soluna, restaurante japonés en Barcelona
Cooked soybeans and roasted wheat are mixed with koji and salt and left to ferment for months.
Cocina de Soluna, restaurante japonés en Barcelona
03

How to use it well

Sparingly: a few drops lift fish without covering it. With sushi, dip the fish, not the rice, so it does not fall apart. In the kitchen it is used to marinate, glaze, dress and add depth to broths.

Cocina de Soluna, restaurante japonés en Barcelona
Cocina de Soluna, restaurante japonés en Barcelona
04

Soy sauce and sushi

A good soy sauce does not try to be the star: it accompanies. That is why in many tasting menus the chef has already seasoned each piece and the diner needs to add little.

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