There may be some parasites and bacteria in silkworm chrysalis. Never eat it uncooked, nor eat it directly in cold salad or pickled. Be sure to cook it thoroughly before eating. Generally, the cicada pupa is washed, boiled in cold water and turned to medium heat. After the water is boiled, boil for 10- 15 minutes. The cicada pupa bulges, indicating that it is ripe.
Matters needing attention in edible silkworm chrysalis:
Poisoning may occur if silkworm chrysalis is eaten improperly, so the following are the precautions for eating silkworm chrysalis. First, unprocessed silkworm chrysalis can't be eaten, and it can't be eaten directly by cold salad or pickling.
Second, if the silkworm chrysalis is not fresh, discolored, black, pink, hemp and spicy, it cannot be eaten. Third, silkworm chrysalis must not be eaten when it smells or stinks. Fourthly, silkworm chrysalis can't be eaten if it is kept for too long, exceeding 1 week in winter and 20 hours in summer.