Fill a clear glass with white water. Let it sit for a minute. If it clears from the bottom up, it’s just bubbles.
Now, pour a second glass from the same tap. But this time, pour it slowly down the side of the glass. Fewer bubbles, less white.
Pour the first glass fast and furious. White explosion! You control the fizz.
Container shape matters too. A wide glass releases bubbles faster. A narrow glass holds the white fog longer. It’s a tiny arena for bubble wrestling.
When It’s Actually Not Bubbles
Okay, let’s be real—rarely, it’s not air. If the water stays white after standing an hour, that’s a different story.
It could be sediment—like crushed limestone or sand. Or, in very old pipes, tiny mineral particles from corrosion. That’s a call to your water company.
But 99.9% of the time? It’s air. You’re just witnessing your water system breathing.
Why Is My Tap Water White at Alexander Feinstein blog
