Read at the Suara Surabaya site:
25 August 1211
A firm operating from Surabaya imported from Bulgaria several bags of unwashed ketumbar, (dark in colour) and in order to fetch a better price for a lighter coloured product proceded to to wash the ketumbar in a tocic brew made up from caustic soda, hydrogen peroxide and chlorine! The article did not state whether the “washed” ketumbar was destroyed (hopefully!)