Before eating fresh day lily, peel off the skin of the day lily and then pick off the stamens, so that some colchicine can be removed. Put the stamen-removed daylily in water, wash it and soak it for as long as possible. Because colchicine in fresh day lily is soluble in water, it will be safer to eat. After that, just fry the soaked daylily in hot water. When scalding, you can add some edible salt to protect the color of day lily. Preservation method of fresh daylily: 1. Cold storage can clean fresh daylily, then put it into food bags or fresh-keeping boxes and put it in the refrigerator for cold meals. This can be kept for about a week, and it will last longer if it is frozen in the refrigerator. 2, dehydration treatment Dehydration treatment is to put fresh daylily directly in the sun to dry, when placed as flat as possible, do not overlap, let it fully absorb the sun, accelerate its evaporation. It usually takes two to three days to dry, and then the dried day lily is put into a food bag and stored in a cool place.