Can Automated Trolley Sanitizers Minimize Illness In Your Groceries?
Trolleys treated with a proven method using an automated trolley sanitizer can reduce microbial contamination. However, this would not guarantee reduced illness. You will already see the most benefit from automated trolley sanitization for trolley hygiene. This should comply with an overall hygiene plan and should not replace your normal trolley cleaning.
Continue reading to learn how automated trolley sanitizers can help reduce illness during a grocery shopping trip.
How Do Automated Trolley Sanitizers Work?
Depending on the brand, these can vary in the way they sanitize. Some are Ultraviolet (UV-C), while some will use a combination with liquid. The trolleys are put into an enclosed chamber and receive coverage with a sanitizer for a set period, and they are heading back to use by customers. Using an automated system minimizes the reliance on manually wiping the handles. Creating systems that are consistent and ready to run. As long as there is time given to sanitizing, good coverage, environmental factors, and handling of the trolleys.
Are Shopping Trolleys Really Contaminated?
Studies have found evidence of bacteria in customers’ shopping trolley handles, baskets and child seat areas. A 2026 study found 820 shopping trolleys had several bacteria: Staphylococcus Aureus, Escherichia coli, and Acinetobacter Baumanii. Other studies in supermarkets have discovered enteric bacteria plus evidence of contamination from people, foodstuffs and environments.
Not all of the microbes we’ll find will make people ill; research has shown this can depend on what organism they are, levels of contamination, and how much time they can survive. It also depends on contact, hand hygiene, and reaching sensitive areas.
What Has UV-C Studies Shown?
UV-C Microorganisms can be deactivated when the genetic material is damaged. Ultraviolet studies on meal trolleys in clinics found a controllable 10-minute sanitization to kill all visible bacterial growth from those sampled. Reviews have also found that using UV-C to sanitize surfaces in high-contact healthcare areas can provide a boost in reducing microbial contact.
This shows UV-C can be used to decontaminate surfaces. However, this does not directly relate to all commercial shopping trolley sanitizers. The shape of trolleys, power of the ultraviolet light, length of sanitizing, age/condition of lamp, distance to surface, surface composition, and overall coverage can have an impact.
Why Is Reduced Contamination Not Guaranteed to Reduce Illness?
A contamination reduction study can test the level of microbes before and after. Whereas an illness reduction study will look at reduced illness in the people being exposed. From current research, we can conclude sanitizers can reduce contamination from trolleys. However, direct evidence to show that automated trolley sanitizers in supermarkets reduce illness in customers and staff is limited. You should make clear statements to your customers that this is a good way to keep your trolleys clean and reduce contamination, but it is not guaranteed.
“Automated cart-sanitizing stations can give grocery stores a more consistent way to reduce surface contamination, but the equipment must be properly tested, maintained, and integrated with routine cleaning. It should strengthen the store’s hygiene program, not be marketed as a guarantee that customers will not become ill.”–Jason Gardiner, CEO
Grocery Store Benefits
You will see a consistent, all-over system because it’s automated. Instead of employees having to physically wipe the trolleys, it will increase customer confidence. Ensure records are effectively kept when trolleys are defaced. If you’re using a chemical-free UV-C system, then this could contribute to less wiping and liquid sanitizer being used long term. This also needs to be considered in relation to your processes. If your sanitizer is causing a backup in trolleys or too much handling, then you could fail to use it consistently.
What Should You Question Before Purchase?
Ask for the system to be tested fully on the product. Don’t just ask for lab tests on the UV-C or sanitizer. If there is useful documentation, it should include details on what was being tested (organism), how long they were in removal (contact time). Dose, trolley type, testing areas, reduction, and environmental variables will be included.
If using a UV-C system, have a think about how they’re covering the handles, inside the baskets, the child seats, wheels, joints, and many other areas that could be left in shade. Factors such as Ultraviolet wavelength, intensity, distance, length of treatment, age of the lamp, and shaded areas can cause variations in performance. EPA regulates pesticidal devices, but they are not conducted as regularly as registered chemical disinfectants.
Don’t Forget To Clean!
This will not remove any visible dirt such as mud, food particles, grime, etc. This can have issues, as during the microbial inactivation process, organic contamination is not desirable. If trolleys are very dirty, then they need cleaning. Proper research indicates cleaning in the first stage of visible dirt, and Organics can affect disinfection. Include cleaning processes for trolley preparation, frequency of processing, changes to lamps/nozzles, operations, quality, spillage, and raw meat leakage. Ensure you use this with hand sanitizer access, packaging controls, and cleaning other high-touch points.
Will This Equipment Provide Value?
It will depend on your trolley volumes, labor, cost of consumables, capacity, maintenance, and overall customers’ expectations. For a busy store, listing the sanitizer could have great value. However, a smaller store may find it doesn’t add much value, as they can manage manually well, with good processes. Purchase should be based on verified performance. We don’t just want to show we’re sanitizing; we want something that gives a consistent reduction but will not affect operations. Contact the professionals at Big Sky Decon if you want more information on sanitizing methods to reduce illness.
Frequently Asked Questions
Q: Can an Automated Sanitizer Fully Sterilize Trolleys?
A: Trolley sanitizer does not equal sterilization. This depends on what system is being used, what cycle has been used for treatment, what bugs they are trying to kill, what condition of the surfaces and coverage. Don’t be taken in if they’re claiming to fully sterilize; ask for proof from testing from the manufacturer.
Q: Can UV-C Fully Sterilize Grocery Trolleys?
A: No, not automatically. Many areas can leave the surfaces in shade: basket grid surfaces, wheel assembly, joints, child seats, and areas where the trolleys overlap. A well-designed system should include these areas through use of lamps, multi-angled treatment, trolley movement, and reflective surfaces.
Q: How Often Should I Sanitize My Grocery Trolleys?
A: There isn’t one answer to this. It’s going to vary depending on just how busy your trolleys are, turnover, and incidents of contamination. Local regulations and your risk assessments. Many operators may decide to sanitize after every use due to the equipment.
Q: What Costs Would I Expect?
A: Depending on your situation, there may be initial costs, electricity, and replacement of lamps/treatment materials. Additional costs include maintenance, training, repairs, verification, and downtime. Compare: throughput and labor savings.