The Thiolized® process enhances a yeast’s ability to biotransform compounds found in malt and hops to unleash thiols — flavor- and aroma-active compounds reminiscent of grapefruit, passion fruit, and guava. Many brewers who include dry hopping in their processes are already familiar with the concept of biotransformation, or the development of new aromas and flavors due to yeast interacting with hop compounds.

WHAT ARE THIOLS AND WHERE DO THEY COME FROM?
Volatile thiols are highly impactful aroma compounds that evoke grapefruit, passion fruit, and guava and are found in a variety of tropical fruits, wine grapes, and hops. These thiol compounds exist in two forms — free forms, which are highly aromatic and volatile, and precursor forms. The precursor forms, abundant in malt, are non-aromatic and require yeast with β – lyase biotransformation activity to release them. Hop varieties vary widely, not only in the amount of thiol compounds, but also the percentage that are in the non-volatile precursor form. New World hop appear to be the high in free thiols, which contribute to their characteristic tropical fruit aromas. The precursor for 3‑sulfanyl-1-hexanol, a thiol known for its intense grapefruit and passion fruit aromas, is abundant in barley, but does not reach sensory thresholds until converted to its free form. In beer and wort, the overwhelming majority of these thiol compounds are in precursor form (1000-fold!) and are a stockpile of aroma potential with a yeast capable of biotransforming them to the free volatile and aromatic thiol compounds.

Phantasm Thiol Powder 150g (5.3 oz)

$ 17.99

DESCRIPTION:Phantasm is a powder made from Marlborough Sauvignon Blanc grapes. They are incredibly rich in Thiol precursors, which when added correctly to a fermenting beer, can unlock rich, Strong tropical fruit aromas. Our packs contain enough Phantasm for 5 to 10 gallons of beer, depending on your usage rates, yeast selection, hop selection, etc. If you're using a thiolized yeast,...

Omega Yeast OYL-405 Helio Gazer™

$ 10.99

With enhanced Thiolized® capabilities, Helio Gazer™ boosts thiol biotransformation to free thiols 200x above sensory threshold, creating a supernova of tropical, passion fruit flavors and aromas. Even in the juiciest of IPAs, expect robust guava and New Zealand sauvignon blanc-like aromas along with the beloved sturdy haziness of its parent strain, British Ale V. Pair with mash hopping, grape-derived products...

Omega Yeast OYL-403 Lunar Crush®

$ 10.99

Put a spin on lager brewing with Lunar Crush®, our distinctively tropical Thiolized® lager strain. Lunar Crush biotransforms thiol precursors from malt, hops, and grape-derived products for a new wave of passion fruit, guava, and New Zealand Sauvignon blanc fruitiness. This isn’t your typical lager yeast—Lunar Crush is the perfect companion for complex, hop-forward styles or even creating something entirely...

Omega Yeast OYL-404 Star Party™ Ale

$ 10.99 (Sold Out)

A Thiolized™ version of the beloved Chico strain (West Coast Ale I), Star Party™ is a thiol burst with aromas of passion fruit, dank pink guava, and citrus zest. Expect the same clean fermentation profile and clarity as its parental strain, Chico, but with a big burst of thiols that’s perfect for redefining classic styles, juicing up a West Coast...

Omega Yeast OYL-402 Cosmic Punch™ Ale

$ 10.99 (Sold Out)

A Thiolized™ version of our popular hazy strain, British Ale V (OYL-011), Cosmic Punch™ Ale generates thiols through biotransformation, releasing tropical aromas experienced in southern hemisphere hops and New Zealand Sauvignon Blanc. This punchy strain unleashes vibrant grapefruit, passion fruit and guava notes. Expect the same performance and haze you get from British V, but with additional thiol aromas. Experiment with...

Phantasm Thiol Powder 75g (2.65 oz)

$ 9.99

DESCRIPTION:Phantasm is a powder made from Marlborough Sauvignon Blanc grapes. They are incredibly rich in Thiol precursors, which when added correctly to a fermenting beer, can unlock rich, Strong tropical fruit aromas. Our packs contain enough Phantasm for 5 to 10 gallons of beer, depending on your usage rates, yeast selection, hop selection, etc. If you're using a thiolized yeast,...