Private Training

Without being properly purified and refined, rock salt tasted awful! It was very bitter once the salt melted in the oral cavity. They were excited to try it at first but very soon no one wanted to consume it anymore. In the afternoon, they began to start a fire for cooking. They grounded the rock salt into tiny pieces and cooked it in boiling water.

Most of them in the group had gone to high school before and had acquired basic knowledge on the salt purification process during their​ chemistry experiments. Although some did not remember the exact procedures, everyone contributed their knowledge and memory to get it done. A layer of white salt appeared in front of them after repeated filtration and crystallization. They carefully moved the white salt into a stone bowl.