Five Guys is known for juicy burgers and fries, but the first thing you’ll eat at the chain is the shelled peanuts. They have been serving complimentary peanuts for over 20 years.

The chain has never offered a satisfying official explanation. However, they have provided some helpful hints suggesting the peanuts are there as a snack while customers wait.

Five Guys' FAQ explains, “Peanuts have become a part of our identity. It is a well-loved feature of Five Guys fans and they look forward to having a pre-burger snack at our stores.”