C358 Is There Ice or Is There Something Wrong with It

As the saltpeter was thrown into the water, a layer of white foam began to float on the surface of the water.

When Chen Xinheng saw this scene, he subconsciously sucked in a breath of cold air. Although his mind was already beginning to repeatedly stress that it was impossible to make ice in the summer, he still couldn't help but feel that the scene before his eyes was very strange