The bitterness of bamboo shoots is usually caused by natural alkaloids in bamboo shoots. There are several ways to get rid of this smell:

1. Peeling: Peeling bamboo shoots, especially the older parts. This can remove the alkaloids on the surface and reduce the bitterness.

2. Soak in water: soak bamboo shoots in clear water for several hours or overnight. This can help to remove bitterness and improve the taste. It is suggested that bamboo shoots should be sliced or cut into sections before soaking, so that water can penetrate into bamboo shoots more easily.

3. Cooked: Cooked bamboo shoots can also reduce bitterness. It is suggested to slice or cut bamboo shoots into sections before cooking, which makes it easier to heat the inside evenly.

4. Add salt: When cooking bamboo shoots, you can add appropriate amount of salt to neutralize the bitterness. But be careful not to put too much salt, otherwise it will affect the taste.

5. blanching: blanch the bamboo shoots in boiling water, and then rinse them with cold water immediately. This method can help to remove the bitterness of bamboo shoots while maintaining the taste of bamboo shoots.