1. Appearance: Swallow egg is another name for fresh longan, and the appearance of fresh longan is nearly spherical, yellowish brown or grayish yellow. Longan meat is dried longan, which is an amber irregular block.

2. Meat quality: the meat quality of swallow eggs is firm, and the longan meat is hard. 3. Taste: Swallow eggs taste sweet and have a strong fragrance. Longan meat is very sweet and has the sweet smell of medicinal materials.