QR Codes on Food Packaging

The information the pack cannot hold

• Full allergen and ingredient detail, including the may-contain statements that get compressed to unreadable point sizes on the physical pack
• Nutrition per serving, per 100 g and per pack, in the format the shopper prefers rather than the one that fitted
• Origin and traceability by batch, which is where a GS1 Digital Link code turns the marketing scan and the checkout barcode into one symbol
• Preparation and recipes, which is the scan that increases repeat purchase more than any promotion
• Storage, freezing and shelf-life guidance in more detail than the pack allows
• Sustainability and recycling instructions, increasingly required on-pack and impossible to fit legibly

Language is the underrated argument

One pack sold across several markets normally means several printed variants or a leaflet in six languages set in five-point type. A code opening a page that detects the phone's language replaces all of it, and gives every reader full-size text instead of a magnifying-glass experience.

Accessibility follows the same logic. A hosted page can be read aloud by a screen reader; a printed ingredient panel cannot.

Print rules for food substrates

Food packaging uses the most hostile materials in print:

• Flexible film and pouches wrinkle. Place the code on a flat panel, usually the base of the back panel, away from the seal and the gusset.
• Foil and metallised film reflect. Print the code inside a matte white panel rather than directly on the substrate.
• Frozen and chilled packs get condensation and frost. Test scanning on a pack straight from the freezer, because that is where it will happen.
• Flexographic printing on film has real dot gain. Ask for a proof on the actual substrate and expect to increase the module size.
• Minimum 15 mm on a small pack, 20 mm where there is room. Keep the payload short so the code stays a low version with chunky modules.

Do not lose the code to the seal

The most common production failure is a code that survives artwork approval and then lands under a heat seal, a folded flap or a promotional sticker. Mark the code zone as a keep-clear area in the dieline, the same way the barcode zone already is.

Make it permanent, not promotional

Packs stay in cupboards for a year and in the supply chain for longer. A dynamic code is what lets a summer competition become an evergreen recipe page in autumn, and it is what allows a recall notice to be pushed onto packs that are already in homes, which is a genuine safety capability rather than a marketing one.