1. Many jujube farmers are eager to go on the market when the jujube is immature, and they will spray some pesticides to make the immature jujube go on the market too early, and the immature jujube will have a bitter taste.

2. If jujube is sweet and bitter, and tastes bitter after eating, it may be that you bought "saccharin jujube".

Second, what is saccharin jujube

Blanch the immature green jujube in hot water, and the winter jujube will ripen and turn red immediately. Then soak the red dates in saccharin water for several hours, and the red dates will become red and sweet.

Third, the harm of saccharin jujube

Saccharin is 200-700 times sweeter than sugar. Does not participate in metabolism in the body, and does not provide calories and nutritional value. Therefore, it can be used as a sugar substitute for diabetics, and it will not cause harm to human body if used according to national standards. However, it is forbidden to add sodium saccharin to fresh dates and other fruits in China, and the source of sodium saccharin used for soaking dates in the market is unreliable, so it is difficult to control the dosage. If unscrupulous traders use inferior saccharin sodium or even industrial saccharin sodium in large quantities, it is very likely to cause damage to consumers' liver and even nervous system.

Fourth, classification

1. There are many ways to classify jujube varieties, which can be divided into five categories according to their uses: dried, fresh, dual-purpose, preserved and ornamental. Fresh jujube varieties refer to jujube varieties whose fruits are suitable for fresh eating. It is characterized by crisp pulp, rich juice and sweet or sour taste. There are 26/kloc-0 fresh jujube varieties, accounting for more than one third of all jujube varieties. In recent years, new varieties of fresh jujube have been identified, such as Zaocuiwang, Naixiang Jujube, Qiyuexian, Jingzao 39, Sunshine and Moonlight.

2. There are many varieties of fresh dates, among which there are many excellent varieties, such as Zaocuiwang, Naixiang Jujube, Ningyang June Fresh, Xinzheng June Fresh, Daokou Crisp, Honeypot, Crispy Knot and so on. The middle and late maturing varieties are Daguazhao, Bailing, Linyi Lizao and Chili Jujube. Zizyphus jujuba, not crisp, becomes a winter jujube; Late-maturing varieties include Dongzao and Xingtai September Green.