‘Handwashing Lie Detectors’ Could Expose Food Service Workers
Are food service workers washing their hands like they should? The Centers for Disease Control and Prevention (CDC) found that workers wash their hands when they should about one in three times. They said that one of the common causes of foodborne illness outbreaks in restaurants is the spread of germs from the hands of food workers to food. While many food safety programs and restaurant managers provide training on proper handwashing and hygiene, some food workers still don’t follow this practice.
The Solution: A Handwashing Lie Detector
CNN reported that a new product called the Handscanner, described as a handwashing lie detector, has hit the scene. Christine Schindler, a biomedical engineer and inventor, is cofounder and CEO of PathSpot, a New York tech startup. The hand hygiene device is supposed to better protect employees and customers in the food industry, restaurants, food manufacturers, and packaging plants from the threat of foodborne illnesses and outbreaks.
Additionally, CNN reported that it’s already being used in 10,000 food service locations worldwide, including franchised Taco Bell, Arby’s, and Chopt restaurants.
How It Works
According to PathSpot’s website, it looks like a mounted hand dryer. After washing their hands, workers place their hands under it, palms up, then palms down, and within two seconds, it can identify any residual contaminant using “light fluorescence spectroscopy” with safe, non-UV LED lights.
Schindler told Tech Crunch, “It’s not identifying if your hand is washed or not in terms of whether it has water droplets,” she said. “Because most of the time people fail a wash, they wash their hands, but they didn’t wash for the full 20 seconds or didn’t use soap in the proper areas.”
The Handscanner is also built to ensure accountability. By using unique employee ID codes or employee, the device has a Bluetooth reader that knows your badge has entered the handwash area. Then, the system can track who’s washed their hands and when. Different restaurants can choose their tracking options. Sometimes, this includes fingerprint or face identification.
“If you don’t come back and wash your hands after you fail a scan, that’s when we notify management of a particular restaurant location through alerts that there’s been a potential contamination situation,” Schindler told CNN.
If you’re wondering if customers can see the Handscanner reports, the answer is no. It’s mostly meant to alert workers when they need to re-wash their hands. For instance, if contaminants are still stuck in hard-to-clean areas, like beneath fingernails, and around jewelry and your knuckles.
In addition, Schindler also points out that wearing gloves isn’t an alternative to handwashing. “The consistency of gloves and how much contamination they spread is even more dangerous than bare hands,” she said. A spokesperson for the CDC stated to USA Today “CDC doesn’t recommend the general public use gloves. Gloves can be a source of contamination, even for the wearer, if not properly removed.” They added, “If the wearer touches a variety of surfaces during the day while wearing the same pair of gloves, contamination can definitely be transmitted from one surface to another.”
Check out more on the Handscanner here.