Yakiba-tsuchi soil (soil used for quenching) is applied thinly and evenly over the Hirachi (blade side), then Hamon (blade pattern) is designed with a writing brush using Yakiba-tsuchi soil for quenching for Hamon.
平地に平地用の焼場土を均一に薄く塗り、刃紋に筆で刃紋用焼場土を描く。