cask
Butt
No legal definition
A cask of approximately 500 litres, tall and comparatively narrow — the standard format for sherry-seasoned European oak in Scotch maturation.
Not a legal term
No whisky regulation in Scotland, Ireland, the United States, the EU or Japan defines this. It is a trade or marketing term, so it is only actionable if its use is actively misleading.
Worth knowing
Traditionally the sherry butt (bota) of Jerez; the industry now largely uses purpose-made seasoning butts. A butt's low surface-area-to-volume ratio means slower extraction than a barrel, despite sherry casks' reputation for fast colour.
Related terms
Last reviewed 2026-07-30 · All glossary terms