Cool the Nanban base immediately as soon as it boils. If it is boiled for too long, the acidity will disappear.
When slicing the salmon, cut the belly fat piece a bit larger. This is because the belly is greasy, and it shrinks when fried.
Green vegetables loses its bright green color in a marinade. Therefore, it is better to serve without marinating.
Maintaining the color of ingredients is very important element of Japanese cuisine because it makes the plate more appealing to the eyes.