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RFID fridges replace the canteen: DoDo founder buys a quarter of Czech firm Eat Smart

Image credit: Eat Smart

A glass-fronted fridge in an office corridor with no lock, no buttons and no coin slot. The employee scans a QR code in an app on first use, opens the door, takes a boxed meal and closes it, and the charge appears on their phone with nothing presented to a scanner. That is Eat Smart, and as of October 2026 it runs at more than a hundred sites across Czechia and sells roughly 50,000 meals a month. It works because every meal box carries an RFID tag.

The news peg is money. On 26 October 2026 V-Sharp, the investment group founded in 2015 by the Czech entrepreneur Michal Menšík, announced it will acquire a 25 per cent stake in Innovation Lab, which operates Eat Smart. Forbes Česko and CzechCrunch both use the future tense, so read the deal as announced rather than completed, and neither side would disclose price or valuation. No press release has surfaced, and CzechCrunch’s photographs are credited to V-Sharp, so the coverage looks company-sourced.

Some context, because none of the parties is a household name outside central Europe. Menšík is the majority owner of DoDo, a Czech logistics-technology firm running software-driven last-mile delivery for retailers and grocers across the region. Eat Smart is a joint venture between the Czech chef Filip Sajler and Hopi Holding, a family-owned Czech logistics, food production and agriculture group with consolidated 2024 revenues of around CZK 11 billion (very roughly GBP 410 million, approximate at October 2026 rates). Innovation Lab is its operating company. Clients named as of January 2026 included the online beauty retailer Notino, logistics operator DHL, bakery group Penam, automotive component maker Witte Automotive and DoDo itself, so the incoming investor is also a customer.

What makes this worth an RFID audience’s attention is not the stake, it is the read model. Eat Smart is unattended retail in the strict sense: a cabinet that sells without staff, without a till and, unusually, without any scanning step by the customer. Lupa.cz reported that every box has an RFID chip which the device registers according to the position of that meal, and that the system works out from the change in contents which items have gone and charges for them automatically. That is an inventory delta, not a point-of-sale read. The cabinet inventories the tags on its shelves, the door opens and closes, it inventories them again, and the difference is the basket.

That puts the whole burden on read completeness. A point-of-sale reader captures one tag presented deliberately, and a missed read announces itself because nothing happens. An inventory-delta cabinet has to capture every tag on every cycle, and a tag that fails to answer on the closing pass is not an error message, it is a meal charged to someone who did not take it, or one given away. The customer sees none of it, so no human is in the loop to catch either.

Boxed chilled meals are close to the worst case for the physics. At UHF the signal is absorbed and detuned by water and reflected by metal, and a fridge is a metal and glass box generating standing waves of its own. Fill it with trays of wet food and the tags against the contents go quiet, while nulls form between the antennas and the back of the shelf, effects set out in the RFID glossary. That is why the second sensing channel matters: Innovation Lab’s site describes “dual verification (RFID + weight sensors)”, which here reads as sound engineering rather than marketing. Weight per shelf is cheap, independent and indifferent to dielectric loading, and it lets the system notice when tag count and mass disagree.

What the operator does not publish is the detail that would let anyone assess how well it works. The same page claims 99.9 per cent accuracy with no baseline, no methodology and no statement of what is being counted, so treat it as a vendor figure. It is also the only company source anywhere that says the tags are UHF, the 860 to 960 MHz band used for long-range, bulk-readable item tagging. The customer-facing eatsmart.cz never mentions RFID, and Lupa.cz and CzechCrunch say only “RFID chip” and name no frequency. Innovation Lab’s page sits on a free dynamic-DNS subdomain, so it is not quotable as official. The UHF description is the only claim on record, uncorroborated, and no reader, antenna, tag or inlay supplier is named anywhere by anybody.

The platform was built in Czechia, Innovation Lab crediting the Prague software house Cookielab with work “from hardware to the mobile app” across the cabinet, the app, digital payment and cloud stock management. The commercial model is what makes that worth paying for. Meals cost CZK 109 to 149, roughly GBP 4 to GBP 5.50 at an approximate October 2026 rate of 26 to 27 crowns to the pound, and employers pay a monthly flat fee in the order of tens of thousands of crowns by size, very approximately GBP 400 to GBP 4,000. That turns canteen capital expenditure into a subscription with no kitchen and no catering staff. The company claims savings of up to 90 per cent of initial investment and 75 per cent of running costs against a conventional canteen, again unaudited.

The people give the story its edge. Sajler, known across Czechia from the television programme Kluci v akci, spent more than twenty years in corporate catering, building the Perfect Canteen and Perfect Catering networks. Hopi Holding took majority ownership at the start of 2020, immediately before covid, and once turnover had been pulled back to just under CZK 400 million the pair sold both networks to Aramark, the American group that is the world’s second-largest corporate caterer, for an estimated upper hundreds of millions of crowns. They tested vending machines next and rejected them, Sajler complaining that you could not see into most of them so a person did not know what they were buying. So they built their own cabinet. The team that sold the canteens is now in the business of replacing them.

Some figures need caveats. Eat Smart launched in 2024, and meals are cooked at the 3,000 square metre Chef Tech Center in Jažlovice near Prague. October 2026 coverage puts it at more than a hundred operating sites with dozens more fridges waiting to go in, while the company’s own sites say “80+ firms”, probably a count of customers rather than installations. Shelf life differs by source: CzechCrunch says boxes packed in inert gas last up to twelve days, other coverage says ten. The Czech outlet Newstream has reported that 2025 sales tripled from 99,000 to 312,000 meals and that 50 fridges went in over the year, figures RFID News has not verified independently. The plan from here is snacks and sushi, then drinks and coffee, public locations as well as offices, and expansion into Germany and Austria.

Strip out the investment and the more interesting half is left. Most grab-and-go RFID retail still sits in pilot stores and trade-show mock-ups. This is a tagged-item cabinet with no lock and no scanner, charging from an inventory delta, running at over a hundred sites and moving around 50,000 units a month, on about the most awkward product category anyone could have chosen to tag. It would be a considerably more useful reference if the operator said who built the read zone.

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By Matt Houldsworth

Over 3 decades of experience in RFID, High Risk/Value Asset Management, Inspection Systems, Brand Protection Technology, Customer engagement technology, WIP management, Logistics tracking, Digital Product Passports (DPP), and Digital Twinning linked to physical products with RFID. My Veribli Tech Makes Circular Economies Work!