High grade dried seaweed: Commonly, good dried seaweed is of dark black and brown color and very bright.

                                            It tastes fragrant, tender, a little sweet and no peculiar smell.

                                            In appearance, a piece of seaweed is smooth and no damaged.

                                           Also, it has well-distributed thickness and neat edge. No spot! No green algae!

(As shown below)

Low grade dried seaweed: It is of yellow color and has no brightness.

                                           It tastes old and no fragrant.

                                           In appearance, a piec of seaweed is damaged and not smooth.

                                           Also, it is mixed in diatoms and green algae and has spot.

(As shown below)