01/27/2026
Thiols.
If a beer smells like fresh pineapple, white grape, or bright tropical fruit, there’s a good chance you’re smelling thiols.
Thiols are natural aroma compounds found in hops, malt, and yeast. Many of them start out “locked” and hard to notice. Certain yeast strains and brewing techniques can unlock those compounds and turn them into big, expressive aromas without adding any fruit.
If you’re a Fog of War fan, you already know this profile. That saturated tropical aroma you get from Citra, Mosaic, and Idaho 7 is driven by thiols working alongside the hops.
This week, we’re pushing that idea even further with Harbinger.
Harbinger is a thiolized Hazy Double IPA built around Idaho 7, Dolcita, and Mosaic, designed to amplify pineapple, citrus, and white grape character while staying smooth and soft on the palate.
This isn’t about making beer sweet.
It’s about making aroma louder.
So when you smell fruit in a beer like Fog of War or Harbinger, you’re not smelling flavoring.
You’re smelling chemistry, yeast, and process working together.
This is Beer: 101.
More coming soon.