Here’s a wild fact: urine was used as a disinfectant in ancient times because of its ammonia content. Let that sink in. You could theoretically store pee long enough to mop your floor—but please don’t. Also, urine can glow under blacklight due to fluorescent compounds called porphyrins. So, if you’re storing it in a dark closet, it might be screaming “party!” in the UV spectrum.
But the prize for weirdest storage fact goes to the Inuit people of Greenland, who reportedly used stored urine to tan hides. They’d bury containers of pee in the permafrost for months. That’s right: long-term urine storage, arctic edition. The permafrost acts like a natural deep freezer, slowing decay for up to a year.
What About the Bladder Itself?
Oh, you thought we weren’t going there? The human bladder can hold about 16 to 24 ounces of pee (roughly two soda cans). But “storing” it for too long is a bad idea. Holding it for hours can stretch your bladder like a water balloon at a fair, and if you wait until you’re burstingly desperate, you risk infections or even kidney damage. So please, for the love of science, use a toilet.
Urine Storage: How Long Can It Last? | MedShun
But back to jars: the longest documented storage of a urine sample for medical testing is about seven days at room temperature—but that sample was essentially a science fiction novel by day five. By then, you’d have a culture of bacteria that could cure boredom or cause a plague.
