"That seven-day fermentation is crucial; the surface of the fermented mixture should gradually change from white to yellow, but if the temperature isn't controlled properly, it just turns yellow straight away and the taste of the beans goes off."
「7 天的發酵期是關鍵，菌屍表層會逐漸由白轉黃；若溫度控制不好，直接變黃，醬油風味就有差。」