Timer set from this step
30:00
Step 1 of 6
Soak kombu in 900 ml of cold water for 30 minutes, then simmer until boiling and remove the kombu.
Timer set from this step
30:00
Step 1 of 6
Soak kombu in 900 ml of cold water for 30 minutes, then simmer until boiling and remove the kombu.