Purified water is the overachiever of the water world. It's not just one method—it's a category that includes distillation, reverse osmosis, deionization, and other fancy processes. Basically, if water has been treated to remove at least 99.5% of contaminants, it gets the "purified" label.
Think of it like this: distilled water is a specific type of purified water, but not all purified water is distilled. If distilled water is a single perfect apple, purified water is the whole fruit basket—still great, just with more variety in how it got clean.
Most bottled water you see labeled as "purified" has gone through a process like reverse osmosis. That's where water gets pushed through a super-fine membrane that catches almost everything except the water molecules themselves.
Do You Actually Taste the Difference?
Here's where it gets real for your daily life. Distilled water tastes flat—like someone sucked all the personality out of it. That's because it's missing the natural minerals (like calcium and magnesium) that give normal water its subtle flavor.
Purified water, on the other hand, often has a small amount of minerals added back in for taste. So if you're sipping plain water, purified might be more pleasant. But if you're using it for something else, the story changes completely.
I gave my cat a bowl of distilled water once. She sniffed it, gave me a look that said "what is this nonsense," and walked away. She's a purified-water cat, apparently.
