• Question: Is it normal seaweed as I live by the seaside?

    Asked by anon-251036 to Katrina on 3 Apr 2020.
    • Photo: Katrina Wesencraft

      Katrina Wesencraft answered on 3 Apr 2020:

      It was first discovered by a Scottish scientist, he extracted alginate from local seaweed (wrack and kelp). You need chemicals to extract it from the seaweed but now you can buy alginate as a powder online.

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