Is making fake sweat Apple’s least glamorous job?

When you create products that are in constant contact with the skin, it’s vitally important that those devices can withstand the everyday conditions and substances they're going to encounter – and that includes sweat.

This means companies that make watches, earphones and other wearables need sweat for their product testing – and lots of it. And that means someone has to make it…

When a Vice correspondent recently visited Apple’s HQ for a piece about its environmental impact, she discovered that there's a lab technician whose duties include producing half a gallon of fake perspiration every day. We don't know that lab tech's identity though – and we're not sure they'd want to brag about their job.

While making sweat may seem like a simple task – just add some salt to some water – there's actually a bit more to it. In fact there's an entire industry around fake sweat, with companies like Pickering Laboratories producing a vast range of ready-to-use ‘artificial eccrine perspiration’ with a variety of different minerals and amino acids at a range of different pHs.

How products that are in constant contact with sweat react to such substances is a major factor in their longevity – hence Apple suspending its devices from floss in bottles of fake sweat all day.

Don't sweat it

All this fake sweat could have another function too. One of the features that Apple was originally working on for the Apple Watch was a sweat detector, and while this feature has yet to present itself, there's a very real possibility that we could be seeing this as a future development. 

A patent recently filed for the Apple Watch shows a modular strap that looks very much like a standard metal watch strap, but with interchangeable links that each have their own functions. When CNBC reported the finding the patent, it claimed the functions of the units could include solar panels, haptic feedback, wireless transmitters, and health detection units such as thermometers, blood pressure sensors and sweat detectors. 

With the recent information about Apple Watch potentially being used for diabetes detection, this modular strap idea could be a good way for Apple to create medical tools for the Watch without the device itself being registered as a medical device, saving it from having to go through the FDA approval process that would slow development timelines. 

So while being Apple’s sweat-maker may not be the most glamorous job going, it may turn out to be pretty important in the long run. 

Andrew London

Andrew London is a writer at Velocity Partners. Prior to Velocity Partners, he was a staff writer at Future plc.

Latest in Smartwatches
garmin epix gen 2 on a blue background with the text lowest price
The Garmin epix Gen 2 is less than half price in the Amazon Spring Sale
samsung galaxy watch fe on a green background with the text lowest price
The Samsung Galaxy Watch FE is an astonishing 48% off in the Amazon Spring Sale
Apple Watch Ultra 2 displaying a step count and distance
Using a smartwatch could be a game-changer for people with diabetes, new research suggests
Apple Watch series 10 on an orange background with the phrase lowest price
Forget the Apple Watch Series 11, the Series 10 just fell to its lowest-ever price in Amazon's Spring Sale
Garmin clippd integration
Garmin's golf watches just got a big software integration upgrade to help you improve your game
Oura Ring 4
Activity tracking on Oura Ring is about to get a whole lot better, but I've got bad news about your step count
Latest in News
Nintendo Switch 2 Joy-Con up-close from app store
Nintendo's new app gave us another look at the Switch 2, and there's something different with the Joy-Con
cheap Nintendo Switch game deals sales
Nintendo didn't anticipate that Mario Kart 8 Deluxe was 'going to be the juggernaut' for the Nintendo Switch when it was ported to the console, according to former employees
Three angles of the Apple MacBook Air 15-inch M4 laptop above a desk
Apple MacBook Air 15-inch (M4) review roundup – should you buy Apple's new lightweight laptop?
Witchbrook
Witchbrook, the life-sim I've been waiting years for, finally has a release window and it's sooner than you think
Amazon Echo Smart Speaker
Amazon is experimenting with renaming Echo speakers to Alexa speakers, and it's about time
Shigeru Miyamoto presents Nintendo Today app
Nintendo Today smartphone app is out now on iOS and Android devices – and here's what it does