The present invention provides a seaweed, which can be recognized by vision, sense of taste and the like, can be actually felt during the eating, and can be crushed by tongue in the mouth after being softened. The present invention also provides a producing method thereof.The producing method includes a step of making the seaweed come into contact with an aqueous solution containing any one or more of phosphate or organic acid, thereby providing the seaweed which can be recognized by vision, sense of taste and the like, can be actually felt during the eating, and can be crushed by tongue in the mouth after being softened.本發明提供一種海藻及該海藻的製造方法,該海藻係在視覺、味覺等方面可辨識為海藻,並可實際感覺到在食用海藻,且經軟化為在口腔內僅以舌頭即能壓碎之程度者。前述製造方法係包含使海藻與含有磷酸鹽或有機酸鹽中的任一種以上之水溶液接觸的步驟,藉由此製造方法,可提供一種在視覺、味覺等方面可辨識為海藻,並可實際感覺到在食用海藻,且經軟化為在口腔內僅以舌頭即能壓碎之程度的海藻。
