Cal Larson is the founder and owner of Soluble Oak, an innovative beverage-industry company based in Spokane, Washington.
Background and Origins
With a professional background rooted in the international lumber business, Cal spent years working closely with white oak. His familiarity with the wood eventually sparked a core question: What if you could extract the desirable flavor characteristics of oak without needing to use an entire barrel?
This curiosity led him to spend years developing a proprietary, patent-pending extraction method.
The Innovation: Soluble Oak
Cal developed an all-natural liquid oak extract (often referred to as "Oak + Nothing") that captures over 200 organic compounds found in American and French white oak—such as vanillins, oak lactones, and tannins.
Instead of waiting months or years for barrel aging, craft beverage makers (for beer, wine, spirits, and cocktails) can use Cal's precision liquid format post-fermentation to:
- Instantly add mouthfeel, polish, and complexity.
- Dial in exact flavor profiles (like vanilla, coconut, and spice) through small batch-testing.
- Simulate barrel-aged characteristics with high consistency.
Environmental Stewardship
A major driving force behind Cal's work is sustainability. Traditional barrel aging requires vast amounts of timber, cooperage resources, and storage space. Soluble Oak’s extraction method uses up to 80% less oak than traditional barrels, drastically reducing waste and environmental impact while streamlining production for modern beverage makers.