Seasonally and also for its aroma, rice straw is usually used as fuel (Warayaki katsuo, bonito roasted over the straw-fueled fire, which is popular for its savory early-summery aroma, is cooled down naturally in order to keep its aroma.)
燃料は季節と香りから稲藁がよく使われる（初夏にふさわしい香ばしい香りが好まれる藁焼きカツオは香りを損なわないように自然に冷ます）。