Short answerRestaurants use potato buns because they're soft and pillowy, slightly sweet, and unusually sturdy — the potato starch holds moisture so the bun stays tender but doesn't dissolve under a juicy patty and sauce. That balance of softness and strength is hard to beat for a burger.
A bun has a brutal job: be soft and delicate to eat, yet strong enough to survive a hot, juicy, saucy burger without turning to mush. Potato buns thread that needle.
What makes them special
- Soft & tender — potato starch keeps the crumb pillowy and moist.
- Sturdy — that same structure resists going soggy, so the burger holds together.
- Slightly sweet — a gentle sweetness that plays beautifully against salty, savoury beef.
- Toasts well — a quick toast adds a buttery edge and extra structure.
Potato vs other buns
Brioche is rich and buttery but can get greasy or fall apart; sesame buns are classic but vary wildly in quality; potato buns are the reliable all-rounder. That's why so many burger specialists default to them.
Our buns
BB52 bakes its own buns — including potato, sesame and pretzel buns matched to each burger. Brioche vs potato bun →