the results of evaporating about 6L of atlantic seawater collected down at the beach at the opening of the Sao Vicente valley

today i will get to try it out on my lunch, i think... gonna try and hold off on eating until this is "grey salt" style dry... ie, a tiny bit damp but mostly dry

probably there is better places to collect sea water further from the outlets of waterways that drain through moderately urbanised areas but the amount of water that flows through this valley and into the river that opens out to the ocean is so great i was more concerned that it wouldn't be very salty and i'd get less than this

looks like i might manage to catch over 250g of salt out of my 6L of sea water, if this works out well i'm going to be setting up to harvest and reduce this down outside in a bucket with an aquarium heater to keep it nice and toasty while the wind blows away the vapors

possibly in future i will also first run it through a carbon filter just to be sure i've eliminated as much of the various pesticide residues and such that i'm sure are present in tiny amounts

#salt #seasalt #atlantic #diy #deardiary

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Well done! I love these sorts of experiments.

Traditionally, salt harvesters stopped the drying process well before full crystallisation.

The first stuff to crystallise out is gypsum.

Then the sodium and potassium chlorides (table salt).

Then you have a solution of "bittern" - magnesium sulfates and fluorides. They are very reluctant to crystalize, taste horrible, and not good for you in quantity.

Just spotted your project this morning, nostr:npub1fjqqy4a93z5zsjwsfxqhc2764kvykfdyttvldkkkdera8dr78vhsmmleku... Very cool, and sweet to see nostr:npub1494rtg3ygq4cqawymgs0q3mcj6hucvu4kmadv03s5ey2sg32df5shtzmp0 chiming in with such knowledgeable supporting information!🙏🏻😄💜🫂💖👍💯🚀

I'm gonna have to try this with some Pacific Ocean water once you have the process debugged!🤔😁😆

I know that down in Anguilla in the West Indies, they flood large fields with seawater and let the sun evaporate it; but I don't know what, if any, post-processing is done...