Yes.
The unused snail soup can be simmered over high heat to make the taste of the snail soup richer, kill potential bacteria and microorganisms, prolong the storage time of the snail soup, and reduce the risk of the soup going bad.
The snail soup has been cooked for a long time, and there is still a lot left. You can use it in moderation. The remaining part can be stored in the refrigerator or frozen to extend the shelf life.