01What happened

The story, straight

Heinz launched the UK's only mayo-exclusive sandwich automat, the Auto-Mayo-Mat, at 15 Bateman Street in Soho, London on June 17-18 to celebrate National Picnic Week. The retro-style vending machine dispenses sandwiches smothered in Heinz mayo for 57p each, and the limited two-day run has already drawn queues from Londoners.

heinz dropped a vending machine in soho that only serves mayo sandwiches and it's only there for two days. the Auto-Mayo-Mat at 15 Bateman Street is selling them for 57p to mark National Picnic Week. people are already queuing up. june 17-18 only, then it's gone.

02Spread timeline

Where it actually started

Jun 17-18, 2026Origin
Heinz Auto-Mayo-Mat opens at 15 Bateman Street, Soho, London for a two-day run during National Picnic Week.the Auto-Mayo-Mat goes live in soho for 48 hours
source

03Source receipts

Every claim, linked

DexertoDexerto article by Jessica Filby covering the Heinz Auto-Mayo-Mat launch in Soho, including location, pricing, and dates
primaryrssreceipt

04What's solid, what isn't

What's solid and what isn't

Confirmed
  • Heinz launched a mayo-only sandwich vending machine called the Auto-Mayo-Mat at 15 Bateman Street, Soho, London.
  • The vending machine is open only on June 17 and 18, 2026, to celebrate National Picnic Week.
  • Sandwiches cost 57p each.

05Why it matters

The editorial take

The stunt plays into the recent wave of brands turning food into short-run experiential pop-ups — limited time, limited location, maximum social media buzz. At 57p a sandwich, it's priced as a novelty rather than a product, which tracks with how Heinz has been leaning into meme-friendly brand activations.

brands keep learning that scarcity plus absurdity equals free content. a mayo vending machine is exactly the kind of thing people film and post without being asked. 57p is basically free, the location is prime for foot traffic and content creators, and two days means you either go now or you don't. heinz knows what it's doing.