Reef Salt to Keep Seafood Alive/Purge

[jeffww]

Any obvious risks to using something like RedSea salt to purge clams or keep crabs alive before consumption? I see certain seafood restaurants using stuff like IO in their tanks. Is there a GRAS designation for reef salts?

 

[Doctorgori]

someone correct me but FWIW I thought Red Sea was evaporated seawater …
Again, that’s in the back of my mind somewhere, I can’t reference it
edit add, here is what they say anyway
https://www.redseafish.com/wp-content/uploads/2015/05/99438-Public-Aquarium-Catelogue.pdf

 

[jeffww]

Seems like the NaCl component is natural but a lot of the other minerals are added. I see that they emphasize "food grade salt" for the NaCl component. Sounds like they just buy sea salt meant for food for their mix to me.

 

[Randy Holmes-Farley Verified Community Expert]

While it is technically fine to use seawater (obviously), I personally would not use a hobby salt mix for something that I ate due to concerns about possible impurities by mistake.

 

[Randy Holmes-Farley Verified Community Expert]

someone correct me but FWIW I thought Red Sea was evaporated seawater …
Again, that’s in the back of my mind somewhere, I can’t reference it
edit add, here is what they say anyway
https://www.redseafish.com/wp-content/uploads/2015/05/99438-Public-Aquarium-Catelogue.pdf

FWIW, no salt mix can be pure dried seawater since some things precipitate and never redissolve.