Menus: The Dim-Table Scan
Menu QR codes — linking to the full menu, allergen and nutrition information, or table ordering — are scanned at 30 to 50 cm across a table, usually in the dim, warm light of a dining room. This is close kin to the table-tent case, with the same low-light penalty on camera performance, plus the added hazards of spills, nightly wipe-downs, and folds. A menu code has to survive the dining room, not just the design studio.
The 10:1 Rule of Thumb, Adjusted for Dim Light
At 40 cm the basic rule suggests 40 mm; in dim dining rooms, use the 8:1 divisor as practical guidance, which lands in the same 40–50 mm neighborhood. Treat 40 mm as the minimum and 50 mm as comfortable. Candlelit rooms push toward the upper end. The adjustment is guidance for real conditions — camera noise in low light blurs fine module edges, and larger modules survive it.
Recommended Size
Print at 40 × 40 mm (about 1.6 inches) on the menu's front or back cover. On large multi-page menus, the back cover keeps the code findable without interrupting the food photography; on single-page menus, a bottom corner works. Keep the code off the center fold and away from spine stitching — folds crack laminate and distort modules exactly where the code sits.
Substrate and Printing
Menus are typically laminated card or synthetic paper, which survives spills without lamination. If laminating, specify matte — gloss laminate under pendant lights is the single most common reason menu codes fail in real restaurants. Sealed or rounded laminate edges resist the nightly wipe-downs menus endure; unsealed edges peel, admit moisture, and eventually lift the print.
Placement and Practical Tips
- Add microcopy with the value proposition: "Scan for allergens & nutrition" or "Scan to order" outperforms a naked code that guests ignore.
- If the menu links to ordering, the code must survive the entire print run — changing the URL means reprinting everything, so use a redirect you control from day one.
- Synthetic paper (polypropylene-based) is worth the premium for menus: it survives spills, wiping, and folding far better than laminated card.
- Test in the actual dining room at dinner lighting, not in the office. The difference is often dramatic.
- Keep the landing page instant and mobile-first; diners scan while hungry and impatient.
Common Mistakes
- Gloss lamination plus pendant lighting equals an unscannable mirror — the classic menu failure.
- Codes printed across the fold of a tent-fold menu, cracking within weeks.
- Linking straight to a PDF menu that renders miserably on phones; link to a proper mobile page.
- Decorative borders or illustrations crowding the quiet zone on designed menus.