A Piece of American History in Your Aging Jar

Before chestnut blight devastated America’s forests during the 20th century, the American chestnut (Castanea dentata) was one of the dominant hardwood trees of eastern North America. Today, mature American chestnut wood is considerably less common than conventional aging woods such as American white oak.

We source genuine American chestnut and turn it into small-batch aging blocks for people who want to experiment beyond traditional oak.

Each piece is cut, dried, and then given a lighter char than our American white oak aging blocks. There’s a reason for that: chestnut can impart character very quickly.

This isn’t something we’d recommend throwing into a jar and forgetting about for two months.

Fast Aging – Start Checking Around 7 Days

American chestnut can become intense quickly when used at this wood-to-spirit ratio. We recommend starting conservatively and tasting your spirit frequently.

Depending on proof, amount of wood, temperature, and personal preference, around seven days may be enough to produce substantial color and flavor.

Don’t judge it by the calendar alone. Taste it.

If you like what the chestnut has done, remove the wood. Leaving it considerably longer doesn’t necessarily make it better—it can result in excessive wood extraction and overpower the spirit.

Something Different From White Oak

American white oak is the classic choice for bourbon and whiskey for good reason. But these chestnut blocks aren’t intended to imitate a traditional bourbon barrel.

They’re for experimentation.

Try them with moonshine, corn whiskey, rye, rum, brandy, or another spirit and compare the results directly against our medium-char American white oak.

Split the same batch between two Mason jars—white oak in one and American chestnut in the other—and experience firsthand what changing only the wood can do.

Suggested Use

Start with a small amount of chestnut per quart of spirit. Seal the jar and store it away from direct sunlight. Begin checking the aroma, color, and flavor within the first several days, with approximately seven days serving as a useful starting point rather than a mandatory aging time.

Because wood size, proof, temperature, and individual spirits all affect extraction, monitor your batch closely.

Rare wood. Fast extraction. Completely different aging experience.

For the person who’s already tried white oak and asks:

“What else can I age it with?”

This is where things get interesting.