Can a crock pot be used for the sous vide bath if food has been appropriately vacuum sealed?

While a crock pot can maintain a consistent temperature, it is generally not considered a suitable choice for a sous vide bath due to two primary reasons:

Precision Cooking : Sous vide cooking relies on maintaining a very precise and constant temperature for an extended period to achieve the desired level of doneness. Traditional Crock-Pots are designed as slow cookers meant for a wide range of temperatures for braising or long cooks but don't have the required level of precision to be useful for a true sous vide cooking.

Safety of Materials: Crock pots typically have an inner material such as ceramic or stoneware. Using these containers to boil the hot水required for sous vide may potentially cause issues like cracking or leaching of chemical when you submerge it and heat it like during sous vide cooking processes.