Core Viewpoint - The article discusses the challenges of preserving fresh lychees and provides tips on selecting, storing, and consuming them effectively [1][2]. Selection of Lychees - There are over 200 varieties of lychees in China, including "Huaizhi," "Feizixiao," "Nuomizhi," "Guiwei," and "Litchi King" [3]. - Different lychee varieties have varying nutritional content, with "Feizixiao" containing 64 mg of Vitamin C per 100 grams, while "Hongxiuqiu" has the highest at 108.5 mg per 100 grams [6]. - "Guiwei" has a lower Vitamin C content of 10.2 mg per 100 grams but a higher total sugar content of 18.2%, while "Nuomizhi" has a lower sugar content of 11.6% [6]. Preservation Techniques - A scientific method called "lychee dormancy preservation technology" involves rapid freezing at temperatures below -35°C to maintain freshness and nutritional value [14]. - Research indicates that lychees preserved using this method retain over 80% of their original nutrients and flavor after thawing [14]. Home Preservation Methods - To preserve lychees at home, it is recommended to cut off excess stems, soak them in saline solution for 10 minutes to eliminate surface bacteria, and then dry them [15][18][19]. - Finally, lychees should be stored in vacuum bags and kept in the refrigerator for extended preservation [20]. Consumption Guidelines - The recommended daily fruit intake is 200-350 grams, equating to approximately 10-15 lychees for adults [22]. - It is advised to consume lychees after meals to minimize gastrointestinal irritation and avoid significant blood sugar fluctuations [24]. - Special populations, such as those with certain health conditions, should limit or avoid lychee consumption [24].