QR codes for food trucks

The codes that earn their place

Code	Where	Why
Social hub	Side panel of the truck	Answers the question a fixed shopfront never gets, where will you be tomorrow
Menu	Serving window, facing the queue	Change prices and mark items sold out without repainting the board
Payment: UPI, PayPal or your local rail	At the hatch, beside the card reader	Keeps the queue moving when the card terminal loses signal on a field pitch

Size for the queue, not the counter

Customers scan while queueing, not at the hatch. Work from the size-by-distance table, minimum code width ≈ scan distance ÷ 10:

• Queue standing 2–3 m back → 20–30 cm menu code on the window or panel.
• Payment at the hatch, 30–50 cm away → 3–5 cm.
• Side-panel social code read from the pavement at 2–4 m → 20–40 cm.

Full sun is the enemy

A truck trades outdoors in exactly the glare conditions that kill scans:

• Matt laminate only. Gloss in direct sun is a mirror, and no error correction level recovers a reflection.
• Mount codes on the outside of the glass. A code taped inside the serving window is read through a reflective, often tinted layer, the most common food-truck placement mistake. Outside the glass, the phone camera sees ink, not reflections.

Print beats screens

A tablet in the window fails twice: the screen washes out in daylight, and it draws power that on many pitches comes from a generator. Laminated matt print survives outdoors and costs nothing to run.

The truck moves: the URL must not

Point the social code at a page you control and update in place: today's pitch, this week's schedule, the order-ahead link. A static code does not expire as long as its URL keeps resolving, so never encode a platform profile you might abandon, encode your own link page and change what it lists.

What goes wrong

• Glossy laminate that scans fine in the workshop and fails at noon on the pitch.
• A menu code pointing at a multi-megabyte PDF, loaded over congested event cellular.
• The payment code inside the window glass, unreadable through tint and reflection.
• A social code hard-encoding one platform's profile URL instead of your own page.

FAQ

What size should a QR code on a food truck be?

Divide the scan distance by ten. A menu code read from a queue 2–3 m back needs 20–30 cm. A payment code at the hatch, read from 30–50 cm, needs only 3–5 cm. Undersized window codes are the most common failure.

Should a food truck menu QR code link to a PDF?

No. Event pitches run on congested cellular, and a multi-megabyte PDF can take a minute to load for a customer standing in a queue. Link a lightweight mobile web page with the menu as text, updated in place.

How do customers find where my truck is today?

Put a social or link-hub code on the side of the truck pointing at a page you update with each pitch. The printed code never changes; the page behind it does. Sized at 20–40 cm it is scannable from the pavement.