1, color

The color of red jujube is purplish-red color, while gray jujube is gray before ripening, so it is called gray jujube.

Gray jujube:

Red jujube:

2, skin

Gray jujube is mainly originated in xinjiang loulan area, because of the temperature difference between day and night in that place is relatively large, so gray jujube's skin coat is very thin, it will show a certain wrinkle, generally long time cooking will not appear rupture, red jujube is not, if long time cooking skin will rupture.

Gray jujube:

Red jujube:

3, shape

Gray jujube shape is ovate, gray jujube shape is not big and not small shape uniformity, gray jujube fruit round full, gray jujube flesh is green and white. The shape of red jujube and gray jujube shape is different, red jujube is the fruit of the jujube tree after drying, drying and become, red jujube water will be lost shape will appear dry crack, red jujube is not easy to store, gray jujube is easy to store.

Gray jujube:

Red jujube:

Baidu Encyclopedia - Red jujube

Baidu Encyclopedia - Gray jujube