How big are whiskey barrels?

The capacity of whiskey barrels varies depending on the type and region. Here are a few common standard barrel sizes:

1. American standard barrel: Capacity: 53 gallons (approximately 200 liters).

2. European/Sherry cask: Capacity: 500 liters, slightly larger than American standard barrels.

3. Quarter cask: Capacity: 125 liters, made by cutting a standard cask into quarters.

4. Octave: Capacity: 64 liters, half the size of a quarter cask.

5.Hogshead: Capacity: 250-350 liters, smaller than a standard barrel but larger than a quarter cask.

6. Butts: Capacity: Around 1000 liters (approximately 264 gallons), mostly used in Scotland for Scotch whisky production.

It's worth noting that these are approximate measurements, and capacities may vary slightly based on the specific cooperage or region's traditions and regulations.