How to store fresh longan? A few practical preservation tips
Fresh longan is best kept refrigerated at 4-6°C. At this temperature, fresh longan is still alive and can breathe, yet consumes very little energy. Do not remove the twigs attached to the fresh longan; use a mesh freshness bag to store it, so as to allow it to breathe, then put it in the refrigerator to chill; this way fresh longan can be kept for about 15 days. If you rely on professional freezing methods, fresh longan can be kept for about 3 months, though the taste will be slightly worse.
Fresh longan is best kept refrigerated at 4-6°C. At this temperature, fresh longan is still alive and can breathe, yet consumes very little energy. However, it cannot be stored in a sealed plastic bag; instead, use a mesh freshness bag to store it, so as to allow it to breathe. If you do not have a mesh plastic bag at home, you can poke a few holes in a regular freshness bag. Stored this way, fresh longan can be kept for about 15 days. If you rely on professional freezing methods, fresh longan can be kept for about 3 months, though the taste will be slightly worse.
Put it in a box, cover it with plastic, and then place it in a cool, shaded place. You can also put it in the refrigerator's crisper compartment at a constant temperature. If you wrap each longan separately in a paper towel and twist it tight, then put them in a freshness box and then into the refrigerator, the freshness will last a bit longer.
Besides the above methods for storing fresh longan, you can actually also peel fresh longan and dry it in the sun; this way only the water of crystallization remains, and such longan will be much sweeter than before.