Does Chinquapin Oak Make A Difference? Let’s Taste The New Grain to Glass Chinquapin Oak Bourbons and Rye From Heaven Hill and Find Out! – Review

Please enjoy my Heaven Hill Grain to Glass Specialty Barrel Series Chinquapin Oak Bourbons and Rye Review!

What is the Heaven Hill Grain to Glass Chinquapin Oak Specialty Barrel Series?

Heaven Hill Distillery has announced the inaugural release of the Heaven Hill Grain to Glass Specialty Barrel Series, an extension of its Grain to Glass line. This new series further builds on the distillery’s continued exploration of grain, wood, and maturation. For the first release, Heaven Hill selected Chinquapin Oak barrels—chosen in partnership with Independent Stave Company—to fully mature three Kentucky whiskeys for six years: a Kentucky Straight Bourbon, a Kentucky Straight Wheated Bourbon, and a Kentucky Straight Rye Whiskey.

The Grain to Glass Series begins with a single seed. Heaven Hill works annually with Beck’s Hybrids to identify a corn varietal suited to Central Kentucky soils. For the 2025 releases, Beck’s 6225 corn hybrid was grown by Peterson Farms in Nelson County, Kentucky. Each Grain to Glass whiskey was distilled utilizing this corn hybrid, along with malted barley, rye or wheat. They were then aged in char #3 American white oak barrels, with the oak being from the most commonly used white oak species, Quercus alba. For the Specialty Barrel Series, instead of Quercus alba, each whiskey was aged entirely in Chinquapin Oak barrels, a distinct species (Quercus muehlenbergii) of American white oak native to Central and Eastern North America. We would expect the Chinquapin Oak to have a unique influence on the flavors of each of the Grain to Glass whiskeys.

Details

General Series Details

• Series: Heaven Hill Grain to Glass Specialty Barrel Series
• Release Year: 2025 (Inaugural Specialty Barrel Series)
• Barrel Type: Fully aged for six years in Chinquapin Oak barrels selected in collaboration with Independent Stave Company
• Corn Varietal: Beck’s 6225 (grown by Peterson Farms in Nelson County, Kentucky)
• Barrel Entry Proof: 107 (historic Heaven Hill entry proof)
• Bottling: Non–chill filtered; bottled at 105-107 proof
• MSRP: $129.99 (per 700ml bottle)
• Availability: Allocated release, national rollout beginning November 2025
• Bottle Features: 700ml custom bottle with “Family Owned Since 1935” embossing, jewel-toned labels unique to each mashbill, gold-coin cork insert, Chinquapin Oak tax strip, and detailed labels and custom illustrations

Individual Expressions Details

• Kentucky Straight Bourbon Whiskey
  Mashbill: 52% Corn, 35% Rye, 13% Malt
  Proof: 105
• Kentucky Straight Wheated Bourbon Whiskey
  Mashbill: 52% Corn, 35% Wheat, 13% Malt
  Proof: 105
• Kentucky Straight Rye Whiskey
  Mashbill: 63% Rye, 24% Corn, 13% Malt
  Proof: 107

Tasting Notes

Tasting Notes: Heaven Hill Grain to Glass Chinquapin Oak Bourbon Review

🛏 Rested: 15 minutes in a Glencairn

👉🏻 Nose: Mildly sweet caramel, mild spicy dry oak, hints of orange peel and licorice; sweet dark cherries become more noticeable with time; appropriate alcohol vapor for the proof.
👉🏻 Taste: Moderate caramel and simple syrup sweetness, subtle licorice and mild dry oak, dark cherries and tart orange peel.
👉🏻 Finish: Lingering sweetness, then increasingly dry later on with mild tannins, white pepper, licorice and orange peel, plus lingering oak spice. Fairly long with lasting dryness on my tongue.

The nose is mildly sweet, but also has the spicy dry oak common to the series. Interestingly, the fruits in the nose become more evident with each sip. The taste has a greater degree of sweetness than the nose at first, but then the finish becomes a bit more dry, tannic and spicy. When compared to the standard Grain to Glass Bourbon, the Chinquapin expression has more fruit in the nose and more pronounced sweetness and complexity in the taste, with the flavors overall being somewhat amplified. The finish of the Chinquapin expression is notably more dry, tannic and spicy than the standard Grain to Glass. Oddly, when I go back and forth between the nose of the two, the standard Grain to Glass has richness and confectionary flavors in the nose that I don’t detect when I taste it on its own. Interesting.

Tasting Notes: Heaven Hill Grain to Glass Chinquapin Oak Wheated Bourbon Review

🛏 Rested: 15 minutes in a Glencairn

👉🏻 Nose: Moderately sweet toffee and caramel, mild spicy dry oak, mild tart orange peel and dark cherries which become more evident with each sip; appropriate alcohol vapor for the proof.
👉🏻 Taste: Mildly sweet at first, with caramel and simple syrup; dark cherries, mild orange citrus and spicy oak; fairly rapidly becomes dry
👉🏻 Finish: Increasingly dry with mild lingering sweetness, mild tannins and spicy wood. Mild lingering fruit. Fairly long.

The nose has pleasant sweet flavors with confectionary notes and fruit; flavors that I would expect in a wheated bourbon. The taste begins fairly sweet, with continuing fruits, although the finish rapidly becomes dry, with mild tannins and dry spicy wood. When compared to the standard Grain to Glass Wheated bourbon, the flavors are again amplified somewhat, with the nose of the Chinquapin expression more sweet and rich, and with more noticeable fruit, but yet the finish of the Chinquapin expression is more dry. In addition, while the nose is close to what I would expect in a wheated bourbon, albeit different from the standard Grain to Glass Wheated Bourbon, the finish is atypical of what is generally seen with the style.

Tasting Notes: Heaven Hill Grain to Glass Chinquapin Oak Kentucky Rye Review

🛏 Rested: 15 minutes in a Glencairn

👉🏻 Nose: Moderately sweet toffee and simple syrup; lemon and lime citrus, both sweet and tart; mild rye spices such as cloves; hints of spicy dry oak. Appropriate alcohol vapor for the proof.
👉🏻 Taste: Moderate simple syrup sweetness; rye spices such as cloves, lime citrus and mild spicy oak
👉🏻 Finish: Increasingly dry and spicy; moderate white pepper spice; mild lingering sweetness and citrus; mild dry spicy wood, hints of char and mild tannins later on. Long with a deep warmth and lingering spice and dryness.

While the rye characteristics are clearly present, the influence of the Chinquapin Oak shifts the profile in noticeable ways. Once again, the flavors overall are amplified when compared to the standard Grain to Glass Rye. The nose becomes sweeter than expected for a rye, as well as sweeter than the standard Grain to Glass rye, but with more pronounced and somewhat different citrus notes, with toffee, as well. As with the others in the Chinquapin Specialty Barrel series, the finish becomes noticeably dry, with white pepper spice and some tannins as well. Again, it is interesting as I go back and forth between the Chinquapin expression and the standard Grain to Glass Rye. For instance, I notice hints of licorice in the Chinquapin rye that I don’t pick up when I sip it on its own.

Putting it all Together – Heaven Hill Grain to Glass Specialty Barrel Series Chinquapin Oak Review

Across all three expressions in this inaugural Specialty Barrel Series release, the influence of the Chinquapin Oak is unmistakable. The barrels contribute a consistent thread of spicy dry oak, full flavors and a dry spicy finish. What I found most surprising, though, is how the Chinquapin Oak seemed to amplify, and in some cases shift, the familiar profiles of these whiskeys. While Heaven Hill describes Chinquapin Oak as contributing notes such as butterscotch, crème brûlée, toasted nuts, chocolate, and coffee, I have previously associated this oak with a bit more spice. However, what this tasting has shown me is that while there is a consistent spicy oak note, as well as a dryness in the finish, in all of these whiskeys, the Chinquapin oak significantly amplifies the richer and sweeter flavors, and the fruit notes, as well.

Overall, these three whiskeys demonstrate just how dramatically a different oak species can shape a whiskey’s flavor profile. Some say that up to 80% of a bourbon’s flavor comes from the barrel. While I feel that statement underestimates the effects of the many other factors, this series allows one to evaluate that effect for themselves. For fans of the Grain to Glass line—or anyone curious about the impact of Chinquapin Oak—this trio offers a fascinating, and very enjoyable, comparison.

Have you tried the Heaven Hill Grain to Glass Chinquapin Oak releases? What did you think? Cheers!🥃

I hope you have enjoyed my Heaven Hill Grain to Glass Specialty Barrel Series Chinquapin Oak Review! I’ve also reviewed the “standard” Grain to Glass releases. You can read those reviews here: Heaven Hill Grain to Glass Wheated Bourbon Review (2025), Heaven Hill Grain To Glass Rye Review – 2nd Edition – 2025 Release and Heaven Hill Grain to Glass Bourbon 2nd Edition Review (2025).

Note: This sample was graciously provided by the Brand for my review. I appreciate it!

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