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Premium Barrels. Exceptional Oak.

Premium Oak Barrels

A specialist barrel house supplying distillers and vintners with select French and American oak, from standard sizes to bespoke specifications.

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French & American Oak Both available across our range
0 Toast levels, light to heavy
ISO 22000 Certified food-safety production

Exceptional oak, by origin

Every barrel begins in the forest, not the cooperage. We work only with mature French and American oak: selected, split and seasoned the traditional way, long before a single stave is toasted.

France, Allier and Limousin

French Oak

Drawn from the forests of Allier and Limousin, prized for centuries for their tight, straight grain. Every tree is at least a century old before it is felled. Root sections are split, never sawn, along the grain into six pieces, then cut into staves that preserve the wood’s natural strength and porosity, essential for a slow, even maturation.

United States, Appalachia and the Midwest

American Oak

White oak, harvested from the Appalachian Mountains and the Midwest, where dense, slow-grown timber gives bourbon and rye whiskies their characteristic depth of vanilla and spice. As with our French oak, only trees of at least 100 years are selected, split by hand, and cut into straight-grained staves rather than machine-sawn.

Twenty-four months in the open air

Every stave is left to season outdoors for 24 months, exposed to sun, rain and frost. This natural weathering draws out harshness and lets the wood’s true character develop before a single barrel is raised. Toasting, the final stage, is what defines a barrel’s contribution to the spirit or wine it will hold, and is treated with the same patience throughout our range.

About Asuliem Barrels

Asuliem Barrels is a specialist supplier of premium oak barrels, serving distillers, vintners and craft producers across the United Kingdom and beyond. We work exclusively with mature French and American oak, selected for its grain, strength and suitability for slow, considered maturation.

Every barrel we supply is produced under ISO 22000:2018 certified food-safety management, by experienced coopers using traditional splitting and toasting methods, supported by rigorous quality control at every stage. The result is a barrel range built on consistency and craft: fully customisable in size, wood species and toast level, backed by a team that understands what distillers and winemakers actually need from their oak.

Exceptional oak
French and American oak only, hand-selected for grain and maturity.
Bespoke craft
Custom capacities, toast levels and finishes tailored to each order.
Global delivery
Worldwide shipping with dedicated UK-led account management.
ISO
22000

Certified food-safety standards. Independently audited and verified by IQNET and CQC. Registration CN00125F20746R0S/3300.

The collection

Every order starts with one choice: a newly built cask, or an expertly refurbished one carrying character from its previous life. Standard capacities from 3 litres to 500 litres, plus fully custom specifications.

New Casks Refurbished Casks
  1. 1

    Choose your size

    From 3 litre miniatures to 500 litre maturation barrels, or a fully bespoke capacity built to specification.

  2. 2

    Select toast level

    Light, medium, medium-plus or heavy, matched to the spirit or wine you intend to mature.

  3. 3

    Confirm specification

    We finalise wood species, hardware and finish before your barrels go into production.

Accurate toasting

Four toast levels, each suited to a different style of spirit or wine.

Toast level Characteristics Best for ageing Toasting process
Light Spicy, cinnamon, cloves, nutmeg Apple cider, brandy, single malt whisky Toasted over low heat for 5 to 10 minutes; inner surface reaches approximately 150°C, the colour of natural wood.
Medium Vanilla, coffee, toffee, spice Brandy, single malt whisky Toasted over medium heat for 20 to 30 minutes; inner surface reaches approximately 200°C, the colour of almond milk sugar.
Medium Plus Coconut, toasted oak, spice, nut, vanilla Bourbon whiskey, most whiskies, rye whiskey Toasted over medium heat for 35 to 45 minutes, with heat increased before the end; inner layer reaches approximately 225°C.
Heavy Leather, smoky, woody Bourbon whiskey, most whiskies, rye whiskey Fired for 5 to 10 minutes until the inner wall chars for approximately 10 seconds, then extinguished with water; fine surface cracking is characteristic.

New casks

Freshly coopered from mature American oak. No prior contents, no shortcuts, built to the same standard as everything else we supply.

Refurbished casks

Casks that already held something else, bourbon, cognac or red wine, before we prepare them for your spirit or wine. Each carries a trace of its past into what you mature next.

Barrel Previously held Capacity Wood species Origin Flavour contribution
Bourbon Barrel Bourbon 200L American white oak United States Toffee, vanilla, coconut
Cognac Barrel Cognac 225L, 270L, 300L, 350L French oak Cognac region, France Gentle fruit, nuts, spice
STR Red Wine Barrel Red wine 225L French oak Europe Fruit notes, vanilla, caramel

Sherry cask finishes

For an additional finishing stage, our refurbished range also includes sherry casks, each carrying a different sweetness and character from Spain’s sherry bodegas:

Oloroso Sherry Cask
Rich, fruity and full of natural sweetness. Whisky matured here is well-layered and full-bodied, with rounded aromas and flavours of nuts and dried fruit.
Fino Sherry Cask
A crisp, refreshing character with relatively low sweetness. Expect a dry profile, with subtle notes of almond, nuts and yeast.
Pedro Ximénez Sherry Cask
Deep, dark sweetness reminiscent of raisin, fig and molasses. Whisky matured here develops a rich, syrupy body with concentrated dried-fruit character and a long, velvety finish.

Enquire about barrels

Bespoke sizes, toast levels and quotations are available on request.

Ask about barrels