fad type

A cask type refers to the type of wooden cask used for storage and aging of whisky. The wood species, origin and prior contents of the cask have a significant impact on the color, aroma and flavor profile of the final spirit.

Main categories of barrel types

Bourbon cask (American oak)

• Bourbon cask: Typically new oak from American white oak, often first fill (first-fill).
• Key characteristics: strong vanilla, caramel, coconut and pronounced wood notes; impart intense color and sweetness.

Sherry cask

• Different sherry types are often used as finishing or during longer maturation: Fino, Amontillado, Oloroso and Pedro Ximénez (PX).
• Typical notes: dried fruits, nutty elements and caramel; the tone varies with the type and duration.

Port and Madeira, as well as general wine casks

• Port cask: berries, cherries, dark fruit and a pronounced sweetness.
• Madeira cask: roasted fruits, caramel, toffee and a light oxidative character.
• Wine casks: red wine or white wine give varying tones of berry fruit, spices and in some cases tannin.

Rum cask and dessert wine casks

• Rum cask: brown sugar, vanilla and tropical fruits; the aroma can be warm and spicy.
• Dessert wine casks such as Sauternes and Tokaji: honey, apricots, peaches and intense fruitiness on the finish.

Special casks and finishing

• Finishing in secondary casks provides an extra dimension of aroma and complexity without dominating the base character.

Cask size, toasting and first fill

• Size affects extractive contact and the rate of color and flavor development; smaller casks yield faster saturation of wood notes, larger casks yield more refined nuances.
• Toasting or charring level: light, medium and heavy affects extraction of vanilla, spices and color.
• First-fill (first-fill) casks often give stronger vanilla, coconut and spices as well as deeper color; reused casks give more subtle wood notes and less sweetness.

Practical notes

• Many whiskies use a combination of cask types or finishing in secondary casks to achieve a balance between sweetness, fruit and wood notes.
• The cask type can be decisive for which impression you experience in aroma and taste.

Notes for describing a whisky

• When describing a whisky, record color, aroma, taste and aftertaste, and indicate any influences from the cask type, for example which type of fruit or wood notes dominate.