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Due to the ongoing pandemic and nationwide logistics complications, orders may be subject to fulfillment and shipping delays.

2021 Single Cask #3: Boulder Spirits Colorado Straight Bourbon Whiskey

In stock
505-1254-9899622 | #3: Boulder Spirits Colorado Straight Bourbon

We expect this will ship in time for the holidays but due to COVID related shipping delays, we cannot guarantee any specific timing.

We hand-selected this cask from Boulder Spirits in Boulder, Colorado. The distillery was founded by Scotsman Alastair Brogan, who has brought Scottish whiskymaking traditions to the Colorado Rockies. This dry, high-elevation environment makes for bold and unique spirits.

We are proud to have this unique straight bourbon whiskey as our first selection from the state of Colorado, one of the hotbeds of the whiskey renaissance taking shape all over the country. And this whiskey captures just why we’re so excited about Boulder Spirits, and about Colorado whiskey in general: it does something new.

Befitting Alastair’s roots in Scotland, Boulder uses a traditional Forsyths Scottish still and much of its output is Colorado single malt. So it’s only fitting that this straight bourbon whiskey, which was aged for 5 years in a 53-gallon new American oak cask, has a very unusual high-malt mashbill: 51% corn, 44% malted barley, and 5% rye. That’s the highest proportion of malt we’ve ever seen in a bourbon, and it works spectacularly well.

The result, after 5 years of aging at over a mile in elevation, is a very big, rich, juicy straight bourbon whiskey. Hearty oak surrounds chocolate mousse, maple syrup-drenched waffles, fudge, and toffee.

With a natural cask strength of 69.3%, this is a bourbon for people who love big bourbon, with a flavor profile that could only come from the mountains.

Proof: Natural cask strength, 138.5 proof
Quantity Produced: 181 bottles
Format: 750ml
Age: 5 years
Mashbill: 51% corn, 44% Scottish malted barley, 5% rye
Barrel Details: 53-gallon new American oak, Kelvin Cooperage
Barrel Entry Proof: 124.9
Finish: N/A
Distillery Location: Boulder, Colorado
Details: Non-chill-filtered, no color added

PRE-SALE STARTING ON OCT 15TH! Bottle shipment TBD — we expect this will ship in time for the holidays but due to COVID related shipping delays, we cannot guarantee any specific timing.

In stock
In stock
505-1254-9899622 | #3: Boulder Spirits Colorado Straight Bourbon


  • The estimated shipping time for alcohol orders is 3-15 business days. Orders will be fulfilled and shipped within 2-5 business days after the order is placed, unless one of the conditions below applies.
  • Unfortunately, we cannot deliver to any PO Box addresses or the states of Alaska, Arkansas, Hawaii, Kansas, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, North Dakota, South Dakota, Utah, Vermont, West Virginia and Wyoming. You will not be able to complete your purchase if you are in one of those states. If you complete an alcohol purchase with a PO Box address, you will be contacted to give us a different address to ship to.
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  • WE CAN NOT Ship to a FedEx or Walgreens as they will not accept packages from other local carriers. 
  • We DO NOT offer refunds if your alcohol order is returned to us. We feel that 3 attempted deliveries is ample opportunity to take delivery. We are charged an additional $20 for all returned packages that are not delivered after 3 attempts and another $20 if we want to attempt delivery again, so we can not offer refunds on account of this unless you are willing to pay the extra $40 worth of charges. We will of course offer refunds or replacements for any products that are damaged or below satisfaction.