Science behind washing your jeans yields unexpected results

Levis 501 Original Fit Jeans in Blue Steel
Let’s start with the ending: you don’t need to wash your jeans. Unless there are spots or stains you want to remove or they’ve just gotten terribly dirty, with normal wear jeans don’t need washing, according to Tech Insider.

Given the wide selection of jeans, including colors, distressing, various washes, fits, and styles, your best bet is to buy jeans that fit and look exactly as you would like them. There’s no need to roll them in mud, pound them with rocks, soak them in salt water, or run over them multiple times with your car to break them in. Jeans today come in so many varieties you might as well just buy the look and fit you want — and then never wash them.

Levi’s says jeans don’t need to be washed. Hot-water washing fades jeans and tumble-drying wears them out. Even worse, washing jeans wastes water and energy.

Jeans can take on an odor after a while that can offer a good reason to wash them, but if you’re concerned about health hazards due to bacteria build-up, scientists say you needn’t worry. According to Bernhard Redl, associate professor in molecular biology at the University of Innsbruck in Austria, there is no evidence that jeans worn as everyday clothing are a health hazard if they’re not washed.

Rachel McQueen is a professor of human ecology at the University of Alberta in Canada who focuses on textile odor development and retention. Unless you work or are going to be in an environment where sterile clothing matters, such as a hospital, for example, “sanitizing your hands is going to be a more important issue here than washing your jeans,” McQueen said.

One of McQueen’s students wore the same pair of jeans for 15 months without washing them. They measured bacteria at various times and found the bacteria count was about the same after 15 months as it had been after 13 days. What they found was normal bacteria and cells from human skin.

And forget about freezing your jeans to kill odor.  “It is clear that freezing does not kill most of the bacteria,” said Redl, “but puts them in a dormant state.” McQueen said, “I think airing your jeans outdoors in the sunlight would be a more effective method of getting rid of odors and a lot of bacteria.”

So don’t wash your jeans — unless, you know, you feel like it.

Emerging Tech

Awesome Tech You Can’t Buy Yet: Robotic companions and computer-aided karaoke

Check out our roundup of the best new crowdfunding projects and product announcements that hit the web this week. You may not be able to buy this stuff yet, but it's fun to gawk!
Deals

REI drops deals on Garmin Fenix 5 and Vivoactive 3 smartwatches

Garmin's activity trackers offer a lot of advantages for health-conscious individuals and outdoor adventurers, and with spring finally here, now’s a fine time to jump on the smartwatch bandwagon. REI’s Garmin sale is the perfect chance…
Smart Home

Is your coffee maker hiding mold inside? Here's how to clean it

Are you a coffee drinker? If you brew your coffee at home and you don't clean your machine, you could be drinking mold, yeast, and other bacteria. Here's how to clean your coffee maker.
Emerging Tech

A silver bullet is being aimed at the drug-resistant superbugs on the ISS

A bacteria which is benign here on Earth can mutate into a drug-resistant superbug once it enters space. Now this problem is being tackled by a team of microbiologists who have found a way to inhibit the spread of bacteria in the ISS.
Health & Fitness

AncestryDNA price drop makes it more affordable to discover your family origins

In step with St. Patrick's Day's emphasis on roots, AncestryDNA cut its price for a DNA-based ancestry search by $40. Send in a saliva sample to receive an estimated ethnicity breakdown, locations of origin, and possible living relatives.
Deals

Bowflex’s spring sale has limited-time deals on treadmills, home gyms, and more

Gyms membership are expensive which is home gyms are a great alternative. When it comes to home gyms, Bowflex designs great fitness training equipment for your home so you can get the full gym experience. Right now Bowflex is offering huge…
Deals

This Bowflex promo code will save you up to $1,000 on training equipment

The Bowflex HVT machine is designed to fit anyone's needs. Whether you're getting back into shape or you train every day, Bowflex's HVT, which stands for hybrid velocity training, combines both cardio and working out in one machine. Now you…
Gaming

Sony could use a robot to turn your PlayStation into a fitness machine

Sony submitted a patent application for a robotic device equipped with a camera to assist in your workout. The images included suggest that the device will work with your PlayStation console.
Deals

Stay fit and save cash with our top 10 affordable Fitbit alternatives

As much as we love Fitbits, they're rather expensive. If all you want is a simple activity tracker, however, then check out these great cheap Fitbit alternatives. With offerings from brands like Garmin, you don't need to pay full price.
Outdoors

Yamaha’s Wabash ebike takes on gravel, single track, and more

The Wabash gravel ebike from Yamaha gives riders a versatile and powerful option for riding trails, pavement, mud, sand, dirt, and more, with plenty of range and power for all-day adventures.
Mobile

Even older Apple Watches could be effective at spotting heart conditions

The Apple Watch Series 4 is known for detecting heart conditions like atrial fibrillation thanks to having an electrocardiograph feature. It turns out that older Apple Watches could be effective at tracking AFib, too.
Health & Fitness

Under Armour HOVR is more than a running shoe, it’s a fitness tracker

Under Armour HOVR running shoes bring more to the table than just a comfortable fit. With UA's Record Sensor technology, you can track distance, duration, and even the path you take as you run.
Outdoors

Trek’s new bike helmet is 48 times safer than the one you’re wearing

Trek and Bontrager have taken the wraps off of a new cycling helmet that uses WaveCel technology to dramatically reduce head injuries by dispersing the impact in a way that is 48 times safer than current helmets.
Emerging Tech

Inflating smart pills could be a painless alternative to injections

Could an inflating pill containing hidden microneedles replace painful injections? The creators of the RaniPill robotic capsule think so — and they have the human trials to prove it.