Distiller’s Yeast for Single Malt Whisky
Angel AM-1 is an active dry distiller’s yeast developed specifically for producing Scotch-style and single malt whisky washes.
It combines fast fermentation with strong maltotriose utilisation, high wort attenuation and an alcohol tolerance of approximately 15% ABV. The resulting wash is designed to retain a soft malt character with a pleasant ester profile suitable for flavourful malt whisky.
Available in a convenient 25g sachet for home distillers and a 500g brick for larger or repeated fermentations.
Why You’ll Love It
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Developed specifically for Scotch-style whisky fermentation
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Excellent choice for single malt whisky washes
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Strong maltotriose utilisation
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Greater utilisation of fermentable malt sugars
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Apparent fermentation above 90%
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Fast and reliable fermentation performance
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Produces a soft taste with pleasant ester character
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Alcohol tolerance up to approximately 15% ABV
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Suitable for all-grain and malt extract whisky washes
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Available in 25g and 500g sizes
Fermentation and Flavour Profile
Angel AM-1 has been selected to ferment malt-based wort efficiently while retaining desirable flavour compounds for distillation.
Its strong ability to utilise maltotriose helps improve wort fermentation and reduce residual fermentable sugars. The resulting wash offers a soft malt profile with balanced fruity ester character that can contribute complexity to the distilled spirit.
Fermentation character will vary with the grain bill, original gravity, wort composition, nutrient availability and fermentation temperature.
Technical Specifications
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Yeast type: Active dry distiller’s yeast
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Recommended application: Scotch-style and single malt whisky
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Fermentation temperature: 22–32°C
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Alcohol tolerance: Approximately 15% ABV
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Apparent fermentation: Greater than 90%
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Recommended dosage: 0.5–1.0g per litre
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Sugar utilisation: Strong maltotriose assimilation
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Available sizes: 25g sachet and 500g brick
Available Pack Sizes
25g Sachet
One 25g sachet is ideal for a typical 20–25 litre malt whisky wash.
The sachet provides a generous pitching rate to promote fast fermentation and reduce the risk of sluggish or incomplete fermentation.
500g Brick
The 500g brick is suitable for frequent distillers, larger fermentation volumes and commercial-scale trial batches.
At the recommended dosage of 0.5–1.0g per litre, a 500g brick can ferment approximately 500–1,000 litres of properly prepared wort.
What Can I Make with Angel AM-1?
Angel AM-1 is particularly suited to:
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Single Malt Whisky
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Scotch-Style Whisky
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All-Grain Malt Whisky
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Malt Extract Whisky Washes
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Peated Malt Whisky
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Smoked Malt Whisky
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Blended Malt Whisky Components
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Experimental Malt and Grain Recipes
For the strongest malt-focused character, use AM-1 with a wort produced primarily from malted barley.
How to Use Angel AM-1
Prepare a properly converted and cooled whisky wort before pitching the yeast.
Use approximately 0.5–1.0g of AM-1 per litre of wort. A 25g sachet is suitable for one standard 20–25 litre whisky wash.
AM-1 may be pitched directly or rehydrated before use. For rehydration, use approximately five to ten times the yeast’s weight in clean water and follow the manufacturer’s directions.
Maintain the fermentation between 22°C and 32°C. Stable temperature control will help produce consistent fermentation performance and flavour development.
Does Angel AM-1 Convert Raw Starch?
No. Angel AM-1 is a specialist distiller’s yeast and does not replace the mashing or starch-conversion stage.
Grain-based recipes must be mashed with sufficient diastatic malt or suitable enzymes to convert the starch into fermentable sugars before fermentation.
For simultaneous starch conversion and fermentation of uncooked grain, use a purpose-designed product such as Angel Yellow Label Yeast instead.
Does Angel AM-1 Need Yeast Nutrient?
A properly prepared all-malt wort will naturally contain nutrients, but nutrient requirements depend on the recipe, gravity and proportion of non-malt ingredients.
A suitable distiller’s yeast nutrient may support fermentation when using malt extract, refined sugars or grain bills containing large quantities of low-nutrient adjuncts.
Recommended Fermentation Temperature
Angel recommends fermenting AM-1 between 22°C and 32°C.
Fermenting toward the lower end of the range may provide a more controlled fermentation, while warmer fermentation generally proceeds faster and may produce greater ester expression.
Avoid sudden temperature changes and ensure the fermenter has sufficient headspace for active fermentation.
Storage
Store unopened Angel AM-1 yeast in a cool, dry place away from direct sunlight and heat.
Once opened, remove as much air as practical, reseal securely and refrigerate. For the best fermentation performance, use opened yeast promptly and always follow the storage directions printed on the package.
Why Buy from Border Brewing Supplies?
Border Brewing Supplies stocks specialist distilling yeast, malt, enzymes, nutrients and oak-ageing products for home distillers throughout Tweed Heads, the Gold Coast, Northern Rivers, Brisbane and the wider Queensland–New South Wales border region.
Order online for Australia-wide delivery or visit our Tweed Heads South home brew and distilling supplies shop for practical advice and local Click & Collect.
Recommended Products
For your next malt whisky wash, consider adding:
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Malted Barley
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Peated Malt
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Distilling Enzymes
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Distiller’s Yeast Nutrient
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Digital Fermentation Thermometer
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Hydrometer
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No-Rinse Sanitiser
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American or French Oak
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Toasted and Charred Oak Staves
