Winter jujube is a late-maturing variety whose fruit growth period exceeds 120 days. In the north of Huaihe River and Qinling Mountains, its fruit ripens in the first and middle months of 10, and the extra-late-maturing variety is delayed to the late stage of 10, so it is called Dongzao because of its late maturity.
Matters needing attention in buying winter jujube.
When buying winter jujubes, it should be noted that the most common winter jujubes are red and cyan, and some are mixed with cyan, but there is no special difference between these three colors. Some people think that red will be especially sweet, but in fact, the growth process of winter jujube will change from cyan to red under sunlight, so mixed-color jujube will appear, because the illumination angle is different, it will still be crisp and sweet.
Cyan can't be said to be immature, but it will taste more brittle. However, it should also be noted that if the particularly green jujube may not be mature enough and the taste may not be so sweet, it is not recommended to buy this kind of jujube.