Grape is a kind of fruit that many people like to eat, and the time to market is relatively concentrated. But it is a berry fruit, and its storage time is relatively short under natural conditions. How to keep grapes fresh? Mainly divided into sporadic family preservation and fruit farmers batch preservation. Grapes can prolong the time to market and eat by fresh storage. Common preservation methods are: 1, hanging branches for preservation. This method is the most natural, safe, energy-saving and economical, and it can also increase the sugar content of grapes, which is most suitable for the preservation of late-maturing varieties. Hanging branches to keep fresh, that is, delaying harvesting, Kyoho grapes have matured and will be listed in late August. If you don't pick the fruit bag, you can hang it on the branches of the vine until the middle of 10, and the grapes will be more vivid and sweet. Late-maturing varieties such as American Red Grape, American Beauty Finger and Ice Beauty can be picked when the temperature drops to about zero. Among them, the wine variety ice grape can be picked until it snows and freezes. At this time, the ice wine brewed is of good quality and high price. For late-maturing varieties, you can also build a plastic greenhouse for simple heat preservation when the temperature drops to about zero, so that the grapes can be hung on the branches and stored until the end of 65438+February, and then directly supplied to the New Year's Day market after picking. Kyoho Grape in Shanghai Grape Production Base is still hanging on the grape branches in June 5438+1October 65438+May (photo taken in June 2065 438+ 10/October 03 65438+May) 2. Cold storage and preservation. That is, fresh storage in cold storage. This fresh-keeping method has a long storage time and can be listed in batches according to market demand. Generally, late-maturing varieties are also selected for storage. After picking grapes, they are selected, bagged and precooled, and then the storage temperature is kept at about 0 degrees. It is best to fill the cold storage with nitrogen to inhibit grape respiration and bacterial activities. 3, the refrigerator is fresh. This fresh-keeping method is suitable for small storage at home. It is best to choose unopened grapes. The fruit bag has the best appearance, indicating that the grapes in the bag are intact. If the fruit bag is soaked from the inside out, it means that the grapes inside are rotten. It's best not to buy it. Put the grapes bought home directly in the refrigerator, which can keep fresh for about a month.