As preparation for 'Yaki-ire (quenching)' to rapidly cool the heated blade with water or other liquid, 'Tsuchioki (soil coating)' where three types of Yakiba-tsuchi soil (soil used for quenching) are applied to the Hirachi (blade), Hamon (blade pattern) and Shinogichi (ridge line) are done.
加熱した刀身を水などで急激に冷やす「焼き入れ」の準備として、平地用、刃紋用（刃文用）、鎬地用の3種類の焼場土（やきばつち）を刀身に盛る「土置き」を行なう。