2D Barcodes Have Crossed from Pilot to Production
For years, the retail industry has discussed 2D barcodes as the eventual successor to the traditional striped barcode. Tesco has now moved that discussion into regular production. The retailer became the first UK supermarket to replace the linear barcode across a complete product range, beginning with 13 own-brand sausage products.
The change uses QR codes powered by GS1. These codes still identify the product at checkout, but they can carry considerably more information than a traditional barcode. The format can include the Global Trade Item Number, expiration date, batch or lot number, serial data and a web address connecting the package to digital content.
The important part of Tesco’s announcement is its scale and permanence. This is a live commercial range moving through normal production, distribution, stocking and checkout operations. After two years of pilots, 2D barcodes are being treated as production infrastructure rather than experimental packaging.
One Code Serving Several Functions
A traditional retail barcode performs one primary job: it identifies a product so the checkout system can retrieve the correct item and price. Every package of the same product generally carries the same code, regardless of when or where it was produced.
A GS1-powered QR code can retain that checkout function while adding data specific to the individual production run. An expiration date can help retailers rotate stock and identify products approaching the end of their shelf life. A batch number can connect a package to manufacturing and distribution records. If a recall occurs, the retailer can identify the affected batch instead of withdrawing every package in the product line.
The same symbol can also connect consumers to online information. A shopper scanning the code with a smartphone could access nutritional details, sourcing information, storage guidance, recipes or other content that would not fit comfortably on the package. That digital information can be updated without changing the basic package design.
These functions explain why 2D barcodes are more than a cosmetic replacement for black vertical lines. The code becomes a shared data carrier for checkout, inventory management, traceability, food safety and consumer communication.
Why the Move into Production Matters
Pilots are useful because they prove that a code can work under controlled conditions. Production exposes the harder questions. Can every code be printed clearly at normal line speed? Will it scan on a flexible or reflective package? Is the expiration date encoded in the correct format? Does the batch number match the human-readable information? Can every checkout process the symbol without causing delays?
Tesco’s earlier testing focused on those operational issues. The transition across an entire sausage range shows that the retailer believes the technology is reliable enough for daily use. It also creates a practical example for other brands and manufacturers preparing for the broader retail transition to 2D codes.
The change will be nearly invisible to most shoppers. Products still scan at the till, and payment works as usual. Behind that simple checkout interaction, however, the retailer can receive more detailed information about the exact package being purchased.
That could support more accurate stock rotation and reduce unnecessary food waste. It could also allow a checkout system to flag an expired product or stop the sale of a recalled batch when the necessary data and business rules are in place. The value comes from connecting the printed code to systems capable of acting on its contents.
How This Applies to Variable Data Printing
The move from a product-level barcode to a code containing expiration and batch information changes the printing requirement. A static barcode can be included in the package artwork and repeated on every unit. Expiration dates and batch numbers change during production, so the QR code containing them must also change.
That makes variable data printing a central part of the workflow. The system must generate the correct code, print it on the correct package and keep the encoded data synchronized with the human-readable date and lot information. A code that scans successfully but contains the wrong date or batch is still a failure.
Print quality also becomes more demanding. QR codes rely on small square modules, clear contrast and an unobstructed quiet zone. Ink spread, missing modules, reflections, package distortion or inconsistent placement can slow scanning or make a code unreadable. These risks must be controlled without reducing the production speed expected by the manufacturer.
Digital Print, Inc. supports this type of production with industrial inkjet systems capable of adding changing QR codes, barcodes, dates, lot numbers and other variable information to existing packaging and converting lines. Inline variable printing allows manufacturers to create production-specific codes as products are made instead of relying entirely on preprinted static packaging.
The Transition Will Be Gradual, but It Has Started
Tesco’s rollout does not mean the traditional barcode will disappear immediately. Linear and 2D barcodes will coexist while retailers, brands, manufacturers and checkout systems prepare for broader adoption. Packaging producers will also need workable processes for different substrates, code sizes, production speeds and data requirements.
What has changed is the level of commitment. The industry now has a full product range using the new format in everyday retail. That moves the discussion from whether 2D barcodes can work to how quickly manufacturers can produce them accurately and at scale.
For variable data printing, the direction is straightforward. As product identification expands to include dates, batches, traceability and digital links, the printed code can no longer remain identical on every package. Tesco’s 13-product rollout is a relatively small beginning, but it demonstrates that variable 2D codes have entered real production.
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