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  • The CDC was just caught using expired disinfectant in their labs, which got me thinkingDisinfectant

  • expires?! WHAT?!

  • Howdy gang, Trace here with some DNews for ya! The CDC's use of expired cleanser was

  • discovered after 75 employees were accidentally exposed to live anthrax last month, and the

  • USDA stepped in to look at their procedures to see who screwed up. Most labs use bleach

  • as their disinfectant, because the active ingredient, hypochlorous acid, [a]causes the

  • proteins in bacteria to unfold and the bacteria die. Bleach is what was being used by the

  • CDC in their labs -- and it has an expiration date of only six months from date of manufacture,

  • so probably three to five months once you get it home. It expires because the sodium

  • hypochlorite decomposes over time. The cooler the storage area the better, but bleach manufactured

  • and stored in the warm summer months, WILL degrade faster.

  • Expiration dates are used by manufacturers not to tell you, "time to throw this away,"

  • but more to say, 'we cannot guarantee this product is perfect anymore.' The dates are

  • usually printed on the product, and there are LOTS of them.

  • The latex in a condom has an expiration date of five years, because the latex needs to

  • be moistmoistmoistto work. And after five years, the brand can't guarantee

  • the latex hasn't degraded from drying. If it has spermicide, it's even shorter, only

  • three years. Like with bleach, spermicides' active ingredient degrades over time. Sunscreen

  • also expires, mainly because the tiny particles inside the solution clump together as the

  • sunscreen ages, this decreases the effectiveness and causes the sunscreen to eventually become

  • crappy.

  • Mascara expires after two or three months, so if you're going to splurge on that fancy

  • lash-lengthening formula, use it all. Why? Because your eyes are dirty, once it has been

  • used, the mascara becomes a breeding ground for bacteria. After the date, the bacteria

  • could have build up enough to cause eye infections like conjunctivitis -- or pinkeye. And you

  • should DEFINITELY get rid of a loofa after THREE TO FOUR WEEKS! Bacteria folks. It's

  • growing on stuff.

  • It's all about the active ingredients. Anti-acne creams usually break down within three months

  • of first opening, sometimes sooner, if they're natural. Hair gel and hairspray lasts two

  • to three years. Soap usually expires in 18 months to two years; especially if it contains

  • essential oils! Soap is made of lye -- a generic term for an alkaline solution -- and a collection

  • of fats. Over time, the lye gets less potent and the fats degradesensing a pattern

  • here? Exactly.

  • It's not just bathroom stuff, motor oil is organic, it used to be tiny plants and animals

  • remember? FOSSIL fuels! Like all the other things, once it's open the air begins to break

  • it down and after 90 days it's expired; unopened it can last as maybe five years. Alkaline

  • batteries last five years, too. The chemicals inside batteries will only hold a charge for

  • so long -- and because their elements are different, lithium batteries can as 10 years.

  • There are a LOT of things with expiration dates, and while you might not have to pay

  • attention to them all the time, it's good to take note. The CDC bleach, by the way,

  • would still be okay to use up to nine months after manufacture, but every month more of

  • the acid is depleted. Hopefully, the CDC will pony up for some new cleaner, and so should

  • you. Kinda makes those trips to Costco seemwellsillydon't it?

  • There are two things that I found that never expire. Honey, and nail polish remover. Yep.

  • So that's good to know I guess. What other things have surprising shelf lifes?

  • Tell us yours below, and if you love exploring your world as much as we do you should check

  • out Audible.com! They've got hours of audiobooks on space, biology, history and more. But if

  • you like listening to people talk about the world around them try :The Autobiography of

  • Mark Twain, Volume 1." It was AMAZING. He dictated the whole book back in 1904 so it's

  • like listening to him talk, literally. Double meaning thereha! Anyway, you can find

  • this and 100,000 other audiobooks on Audible and download a free book of your choice by

  • going to AudiblePodcast.com/DNews! Check it out, and please subscribe for more DNews.

  • Y'all are great. Thanks for watching.

This episode of DNews is brought to you by Audible

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