Salt and pepper and toothpicks at the table in the Banyan Hotel restaurant in Hua Hin, Thailand

Salt and pepper and toothpicks at the table in the Banyan Hotel restaurant in Hua Hin, Thailand in August 2017

Cape Herb and Spice Atlantic sea salt in a cafe in Clarens, South Africa

Cape Herb and Spice Atlantic sea salt in a café in Clarens, South Africa in February 2015

A salt shaker at the Barista, Baker, Brewer cafe in Albury, NSW

A salt shaker at the Barista, Baker, Brewer cafe in Albury, NSW in November 2016

The last supper - Ken and Julia Yonetani

The last supper, a nine-metre table made of over one tonne of groundwater salt sourced from the Murray-Darling Basin featuring a variety of foodstuffs in the form of an exquisite banquet by Japanese and Australian artist collaborators Ken and Julia Yonetani at the National Gallery of Australia (NGA) Contemporary in Canberra, Australia in March 2016.

Deltasal sea salt container at a cafe in Brunswick Street, Melbourne

Deltasal sea salt container at a café in Brunswick Street, Melbourne in December 2014