Huh? re:without the need of man-made salt?

Can you s'plain that? do you mean salt created by evaporation vs. naturaly occuring rock salt (ie, rock salt that was created by evaporation thousand of years ago)?

is is this some sort of new salt i don't know about? or are you just tempting me to continue with the salt thread i started (and that fell flat!) --Potash to you!