As for the soybean processed food of this invention, in the warm water of 1.5 time quantity or less of 0.5 time quantities, or more of cubic measure of the bean milk melting the solidification medicine to which density solidifies the protein in 10% - 15% bean milk and the bean milk, in order solidification ones which are obtained by mixing with the solidification medicine liquid which becomes, for content of the moisture for all mass of solidification ones to become the range of 72% or less of 60% or more, dehydrating, it can. With this invention, those which are included in 0.25% - 0.5% ratio the chemical compound above the kind which is chosen from magnesium chloride and calcium chloride as solidification medicine, vis-a-vis the mass of the bean milk, are used.本発明の大豆加工食品は、濃度が10%~15%の豆乳と、豆乳中のタンパク質を凝固させる凝固剤を、豆乳の体積の0.5倍量以上1.5倍量以下の温水に溶解してなる凝固剤液とを混合することにより得られた凝固物を、凝固物の全質量に対する水分の含有量が60%以上72%以下の範囲になるように脱水して得られる。本発明では、凝固剤として、塩化マグネシウムおよび塩化カルシウムから選ばれる一種以上の化合物を、豆乳の質量に対して、0.25%~0.5%の割合で含むものを用いる。