ZeroWater Pitcher Review: Why Does It Smell Like Fish? (A Chemist Explains)

Glass pitcher and a glass of ice-cold, purified ZeroWater on wooden coasters outdoors.

You bought a ZeroWater pitcher expecting the purest tasting water. For the first two weeks, it was perfect—crisp, clean, and refreshing. Then, suddenly, disaster struck. Your water started tasting like lemon juice. Or worse, it began to smell like rotten fish. You probably thought, “Is my filter defective? Is this dangerous?” As a senior Chemistry … Read more