Hot "Ice"- 1 litre white vinegar 4 Tbsp Baking Soda put vinegar in large bowl, add the baking soda bit by bit until it all dissolves. now boil the solution over medium heat for about an hour. Once you have it ready, pour into a jug and cover with cling film. Put it in the fridge to cool. Once cooled pour it out onto a surface. It should begin to crystallise straight away
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