Costco Four Roses OBSF Private Selection: 10 Years, 113.4 Proof

Arkansas bourbon watch · Costco

A decade in the barrel. A Costco shelf find.

Four Roses Private Selection OBSF brings a 10-year, 2-month age statement and 113.4 proof to the photographed Costco shelf—priced at $85.99.

10 YR · 2 MO

Age statement

113.4

Proof · 56.7% ABV

$85.99

Photographed shelf price

OBSF

Higher rye · F yeast

01 / On the shelf

The bottle, the price, the display.

Costco has a Four Roses Private Selection worth a closer look: recipe OBSF, aged 10 years and 2 months, bottled at barrel strength. The 750 mL bottle’s front label identifies warehouse TS and barrel 71-3 L.

The shelf tag lists $85.99 and Costco item number 1187430. These details identify the photographed offering; a different Four Roses barrel can carry a different recipe, age and proof.

O

The distillery

Identifies Four Roses’ distillery in Lawrenceburg, Kentucky.

B

The mash bill

The higher-rye recipe: 60% corn, 35% rye and 5% malted barley.

S

The whiskey

Denotes straight whiskey. O and S are shared by all ten established recipe codes.

F

The yeast

The F yeast strain is associated with herbal and minty character.

03 / Mash bill B

The higher-rye side of Four Roses.

The B mash bill contains 35% rye. Four Roses’ other established mash bill, E, contains 20% rye, alongside 75% corn and 5% malted barley. Both are bourbon recipes; the grain proportions help give each a different character.

What F contributes

Herbal character meets rye spice.

Four Roses describes the F yeast as producing herbal and minty character during fermentation. In OBSF, that yeast works alongside the rye-forward B mash bill.

The distillery’s published description of its 100-proof OBSF Single Barrel includes apple, vanilla, cocoa, rye and brown sugar. Those notes offer recipe context; this older, 113.4-proof private barrel has not been tasted for this report.

04 / On the label

10 years. 2 months.

The age statement is printed on the side label. The front adds the other identifiers: 56.7% alcohol by volume, warehouse TS and barrel 71-3 L. Doubling the ABV gives 113.4 proof.

Together, the recipe, age and barrel code help distinguish this bottle from other Four Roses Private Selections. The Private Selection wording alone does not establish who chose the barrel for this offering.

View the back label

The back label describes the Private Selection program and includes the barcode and government warning.

Costco sighting

OBSF

10 years, 2 months · 113.4 proof

B mash bill + herbal F yeast

CrossRoads · Bryant

OBSQ

11 years, 1 month · 115.2 proof

B mash bill + floral Q yeast