Foursquare Penultimus Exceptional Cask Mark XXX Rum

Foursquare Penultimus Exceptional Cask Selection Mark XXX is a limited-release single blended rum from Barbados, matured in ex-bourbon and ex-Madeira casks and bottled at cask strength as part of the Foursquare ECS series.

This is not a standard rum.
You’re getting a collector-driven ECS release with full proof, no additives, and a reputation built on consistency and transparency.

Why Buy Foursquare Penultimus ECS Mark XXX

This bottle is about authenticity and reputation.

You’re getting:

• an official Exceptional Cask Selection (ECS) release
• cask strength bottling for full flavor intensity
• no sugar, no additives—pure rum
• dual maturation in bourbon and Madeira casks
• a highly sought-after release among rum collectors

This is a serious bottle for people who know the category.

What Makes This Rum Different

Most rum brands lean on sweetness and blending.
Foursquare does the opposite.

Key characteristics:

• single blended rum (pot and column distillation)
• aged in ex-bourbon and ex-Madeira casks
• bottled at cask strength with no dilution beyond proofing
• no added sugar, coloring, or flavoring
• part of the ECS series known for limited releases and high demand

This is rum focused on transparency, structure, and real aging.

Tasting Notes

Color
Deep amber

Nose
Dried fruit, toasted oak, spice, light molasses

Palate
Caramel, baking spice, citrus peel, rich oak

Finish
Long, dry, structured with lingering spice and wood

What Goes Best With This Rum

Dark chocolate

Roasted nuts

Cigar pairing

Rich desserts

Serving Suggestions

Neat: Best for full cask strength experience

With Water: Opens up fruit and spice

After Dinner: Ideal as a slow sipping rum

Collector Bottle: Strong shelf presence and demand

Frequently Asked Questions

What does ECS mean?
Exceptional Cask Selection—Foursquare’s limited release series.

Is this a sweet rum?
No. It’s completely dry with no added sugar.

Is this a collectible bottle?
Yes. ECS releases are highly sought after and limited.

Our Guarantee | Quality Liquor Store

At Quality Liquor Store, every bottle of Foursquare Penultimus ECS Mark XXX Rum is sourced from trusted distributors and handled with care to ensure authenticity. Orders are securely packaged so you receive exactly what’s listed.