Is it safe to drink the rainwater? Hold your mouth below a drain on a rainy day. It looks like plain water. Is it safe to drink the rainwater? And if collected in a jug, Boiled, and poured into a mug, Will it be okay for me To use it to make my morning tea? You know, I don't see any germs. This neither denies or confirms My prevailing suspicion Of it's composition. Is it safe to drink the rainwater? Hold your mouth below a drain on a rainy day. It looks like plain water. Is it safe to drink the rainwater?