Why Almost Every Bourbon Uses the Same Wood

Bourbon has to age in new, charred oak, but the law doesn't specify which kind. Almost every distillery ends up making the same choice anyway.

American oak is the default

Nearly all bourbon ages in American white oak, a species with a wide grain and naturally high vanillin and lactone content. Those compounds are responsible for a lot of bourbon's signature vanilla and coconut character, and the wider grain allows for relatively fast extraction.

French oak works differently

French oak has a tighter grain and higher tannin content than American oak. That structure slows extraction and produces something more restrained and structured, with more spice and less immediate sweetness.

Why bourbon mostly skips French oak

French oak shows up far more in wine and in whiskey finishing casks than as a bourbon's primary aging wood. It comes down to convention as much as anything: American oak has been the standard for American whiskey for a very long time, and most producers see no reason to change that for primary aging.

Where you might still find it

When French oak does interact with whiskey, it's usually during a finishing step, extra time spent in a wine or sherry cask after the whiskey already aged in American oak. That adds a layer of extra complexity without replacing American oak's core role.

Ask us next time you're in whether a bottle involves any finishing beyond standard American oak. It's a good clue for a different flavor experience than a typical bourbon offers.