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Bourbon Straight bourbon 43% ABV Vegan

Old Forester 86 Proof

Louisville, Kentucky

Brown-Forman's flagship at the entry strength. A moderately high-rye mashbill, fully published, bottled at 86 proof.

Aging
New charred oak, no age statement
Mashbill
Corn 72%Rye 18%Malted barley 10%
Hangover index
6/10
Heavy
vs. category average 7/10
Chemistry profile
Congeners
High
Histamines
Moderate
Polyphenols
Moderate
Sulfites
Very Low
Tannins
Moderate
Sugar
Low
Additives
Very Low
Per 1.5oz serving
Calories
105
Sugar
0g

15.1g ethanol at 43% ABV. No sugar, so every calorie here is alcohol.

In its favor

  • 86 proof
  • Mashbill published in full
  • No additives permitted under US law

What to watch

  • !18% rye pushes the aromatic congener load up
  • !No age statement

Factor by factor

Congeners High

Byproducts of fermentation (methanol, acetaldehyde, fusel alcohols). Strongly linked to hangover severity; darker, less-distilled spirits carry more.

Histamines Moderate

Produced by bacteria during fermentation/aging. Trigger flushing, headaches, congestion in sensitive drinkers. High in red wine, beer, aged spirits.

Polyphenols Moderate

Plant compounds with antioxidant activity. Slightly protective at low doses but at high concentrations may worsen hangover via tannin/quercetin reactions.

Sulfites Very Low

Preservatives (SO₂) added to wine and some beers. Common trigger of headaches, asthma, and allergic-type reactions.

Tannins Moderate

Astringent polyphenols from skins, seeds, barrels. Bind proteins, slow alcohol clearance, and aggravate dehydration-style symptoms.

Sugar Low

Residual sugar amplifies hangover via blood-sugar swings and dehydration. Liqueurs and cocktails are the main offenders.

Additives Very Low

Colorants, flavorings, glycerin, propylene glycol, sorbates. Cheap spirits and ready-to-drinks often hide these in trade-secret formulas.

Allergen flags: oakcornrye

Old Forester’s 86 proof bottling is the same whiskey philosophy as its higher-proof siblings at a lower dose. The mashbill is 72% corn, 18% rye and 10% malted barley, and Brown-Forman publishes it, which is more than several better-known distilleries do.

The rye fraction matters here. Rye contributes more aromatic congeners than corn or wheat, which is why a high-rye bourbon reads spicier and why wheated bourbons tend to sit slightly lower on this page. At 18% it is meaningful but not extreme.