Unlike Bottled-in-Bond or Straight Bourbon, “Small Batch” has no legal definition. It simply means a bottle was blended from a smaller, deliberately chosen number of barrels rather than a brand’s full standard-lineup blend — how small is entirely up to the producer.
Ledger Example
Four Roses makes the blend visible.
Four Roses’ Small Batch combines four of its ten recipes — OBSK, OBSO, OESK and OESO — at 90 proof, rather than the wider blend used elsewhere in the lineup. Small Batch Select goes the other direction: six recipes, a higher 104 proof, and no chill filtration, aiming to keep more of each individual recipe’s character legible rather than smoothing it into one flavor.
Why It Matters
It sits between “consistent blend” and “single barrel.”
Standard blended bourbon draws on dozens or hundreds of barrels for maximum year-to-year consistency. Single Barrel draws on exactly one, for maximum barrel-specific character. Small Batch is the deliberate middle ground — fewer barrels than a full blend, but still a blend, trading some of each extreme for a bit of the other.