After the water is boiled, add bamboo shoots and cook them, and set the time according to the size of bamboo shoots. If the small bamboo shoots change color in two minutes, it will be almost the same. Take out the dried water. If you want to sun faster, put the dried bamboo shoots in a clean snakeskin bag and press them with stones or other heavy objects for a day or two, and the bamboo shoots will turn from round to flat, so that they will sun faster. I made it myself. After wild bamboo shoots are squashed,

Blanch with boiling water to kill the enzyme, and it will not get old for 20 minutes, nor will it rot in the air.