![Massimo on X: "PolyGlu is a coagulant made from fermented soybeans to purify water. It's safe and eco-friendly and just a gram can treat up to 5 liters of polluted water https://t.co/9ia0NKtsCS" / X (twitter.com)](https://twitter.com/rainmaker1973/status/1706607040037343380?s=12&t=kROUvkdQzEN7P95Tlcus6A)