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WHC LAB HERCULES THERMOTOLERANT WHISKEY YEAST
  • WHC LAB HERCULES THERMOTOLERANT WHISKEY YEAST
  • WHC LAB HERCULES THERMOTOLERANT WHISKEY YEAST
  • WHC LAB HERCULES THERMOTOLERANT WHISKEY YEAST
  • WHC LAB HERCULES THERMOTOLERANT WHISKEY YEAST
  • WHC LAB HERCULES THERMOTOLERANT WHISKEY YEAST
  • WHC LAB HERCULES THERMOTOLERANT WHISKEY YEAST
Hercules Thermotolerant Whiskey Yeast (22g / 32L) | WHC Labs

Hercules Thermotolerant Whiskey Yeast (22g / 32L) | WHC Labs

€5,00

Hercules is a newly developed thermotolerant distillers’ yeast designed specifically for grain-based whiskey production. Built for performance at elevated temperatures, it ferments cleanly and reliably up to 38°C, making it ideal for home distillers looking for speed, consistency, and flavour depth.

Each sachet contains 22 grams, correctly dosed for approximately 32 litres of mash. Hercules is a highly diastatic strain, naturally producing elevated levels of glucoamylase, allowing it to convert complex starches into fermentable sugars without relying heavily on external enzymes.

This yeast produces a rich congener profile, delivering notes of dark fruit and leather that carry beautifully through distillation and develop further during barrel ageing. Its strong fermentation performance and high alcohol tolerance result in excellent yield without sacrificing character.

Fast, robust, and expressive, Hercules is well suited to traditional and modern whiskey styles where flavour complexity matters.

Ideal For

  • Grain-based whiskey mashes

  • Barrel-aged spirits

  • High-temperature fermentations

  • Distillers seeking rich, complex flavour profiles

Technical Specifications

  • Style: Whiskey

  • Substrate: Grain

  • Strain: Saccharomyces cerevisiae

  • Pack Size: 22 g

  • Recommended Batch Size: ~32 L

  • Dosage: 70–100 g / hL

  • Fermentation Temperature: 28°C – 38°C

  • ABV Tolerance: Up to 16%

  • Nitrogen Demand: Medium

  • Origin: Made in Ireland

Frequently asked questions
What do I do if my order is delivered and it is damaged?

Contact us straight away. All our orders are packaged carefully but unfortunately sometimes packages do get damaged in transport. Unlike some other homebrew and glass suppliers, if this happens we will replace the damaged goods free of charge.

Where are your manufactured?

As an Irish Company we take pride in supporting Irish manufacturing businesses. Unfortunately we can't get everything made in Ireland so we work on an As Local As Possible principle. This means we get everything from as close to Sligo, Ireland as possible. Sometimes this is Poland or England or France or Scotland. You can always find the country of manufacture in the product description.
When will I get my order?

We dispatch all our orders within 2 days. Our parcels are shipped with tracking by An Post or DPD. Once handed over delivery usually take 2-3 days.
Can I return my order?

We do accept returns with full refunds once the product is undamaged. If the products are damaged in return transit you will be refunded the purchase amount minus the cost of damaged goods.

How much does shipping cost?

Our Standard Tracked Shipping in Ireland is €6 or free on orders over €75 but smaller items (i.e. yeast packets, bubblers, syphon tubes) qualify as "small orders" and are €2.95 to ship or free over €30

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