Doc Swinson’s Alter Ego Triple Cask Bourbon Whiskey Cask Strength
Doc Swinson's Alter Ego Triple Cask Cask Strength is bottled at a full 114.6 proof (57.3% ABV) — the uncut, unfiltered expression of master blender Jesse Parker's finishing experiments, presented in a 750mL bottle. It starts as a blend of two straight bourbons (5–6 years in new American oak, MGP mash bills of 75% corn/21% rye/4% malted barley and 60% corn/36% rye/4% malted barley), finished separately for 11 months to two years in ex-Oloroso sherry butts, ex-Pedro Ximenez sherry butts, and ex-Cognac puncheons, then married in large ex-Cognac foeders. Add a bottle to your cart and order online at Del Mesa Liquor for San Diego pickup or delivery.
- Proof / ABV: 114.6 proof / 57.3% ABV (cask strength, batch release)
- Size: 750mL
- Age: base blend of 5–6-year straight bourbon; triple-cask finished 11 months to 2 years
- Origin: distilled in Indiana (MGP); finished, blended, and bottled in Ferndale, Washington
- Production: Oloroso + Pedro Ximenez sherry butt and Cognac puncheon finishes, married in Cognac foeders
The Alter Ego Experiment, Uncut
The Doc Swinson's Alter Ego line exists because Jesse Parker couldn't stop tinkering — small lots of good whiskey sent into finishing casks just to see what would happen. Triple Cask was the breakthrough: three wine-and-spirit cask types, lots tracked separately, then brought together in Cognac foeders so the finishes layer rather than shout. The standard bottling is 95.8 proof; this cask-strength edition is the same whiskey with nothing held back, and it's the version that shows the finishing casks in full — the one the blender kept for himself.
Tasting Notes
The nose opens with cracker jacks and nut brittle — dark chocolate-covered cherries, fruit leather, and stewed plums underneath. The palate is plush: marzipan and dark cherries over whipped cream and caramel, with allspice and rich oak tannins building through the middle. The finish is long and warming, the sherry and Cognac influence lingering with dark fruit and spice.
How to Enjoy
Pour it neat at first to taste the full 114.6-proof architecture, then add a few drops of water to open the cherry and marzipan notes. It makes a formidable Old Fashioned or a high-proof Manhattan, and stands up to bold pairings — dark chocolate, aged cheddar, or a cigar. Browse more high-proof picks in our bourbon whiskey collection.
Frequently Asked Questions
What is the proof of Doc Swinson's Alter Ego Triple Cask Cask Strength?
114.6 proof (57.3% ABV). The standard Alter Ego Triple Cask is bottled at 95.8 proof — the cask-strength edition is a separate, uncut release.
Which casks are used for the Triple Cask finish?
Ex-Oloroso sherry butts, ex-Pedro Ximenez sherry butts, and ex-Cognac puncheons, finished 11 months to two years and married in ex-Cognac foeders.
Where is Doc Swinson's whiskey made?
The bourbon is distilled in Indiana (MGP), then finished, blended, and bottled by Doc Swinson's in Ferndale, Washington.
Serious bourbon drinkers looking for a cask-strength finished whiskey won't find a bolder shelf-mate — pick up your bottle from Del Mesa Liquor in San Diego, CA, online today.