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Fermentis

Safale US-05 Yeast (11.5g)

Safale US-05 Yeast (11.5g)

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Safale US-05 is Fermentis's American ale yeast, known for neutral, well-balanced beers that are clean and crisp. With low diacetyl and low esters it lets hops and malt do the talking, making it a go-to for pale ales and IPAs.

Character

  • Clean, crisp and neutral, with low esters
  • Forms a firm foam head during fermentation
  • Stays well in suspension, so it keeps working through the ferment
  • Ideal for heavily hopped beers

Fermentis specification

  • Pack: 11.5g sachet
  • Temperature: 18-26°C
  • Apparent attenuation: 78-82%
  • Sedimentation: medium
  • Alcohol tolerance: 9-11%
  • Dosage: 50-80g per hectolitre, so one 11.5g sachet is the minimum dose for 23 litres

How to use

Pitch dry onto the wort or rehydrate in ten times its weight of sterile water or boiled wort at 25-29°C for 15-30 minutes. Store sachets below 24°C for up to 6 months, or below 15°C for longer. Once opened, reseal, keep at 4°C and use within 7 days.

Try it with Cascade hops and Extra Pale Maris Otter for a classic pale ale. For a fruitier English character, choose Safale S-04. Browse the Fermentis yeast range or our beer yeast selector.

Frequently Asked Questions
What is US-05 best for?

American-style ales and highly hopped beers such as pale ales and IPAs, where a clean, neutral yeast lets the hops shine.

What temperature should I use?

Fermentis gives an ideal range of 18-26°C.

How much do I need for 23 litres?

One 11.5g sachet meets Fermentis's minimum dose of 50g per hectolitre for 23 litres.

Can I use it in a beer kit?

Yes. Many brewers swap a kit's own yeast for US-05 when they want a cleaner, crisper finish.

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Yeast Specification

📉MediumAttenuation
🌡️15–24°CTemp Range
🫧MediumFlocculation
🍷11%ABV Tolerance
🔬 SpeciesSaccharomyces cerevisiae
⏱️ Fermentation SpeedMedium
➕ Pitch Rate11.5g/20–30L
🎯 Recommended ForAmerican Ales/IPAs
See all specifications (7 more)
🍑 Ester ProfileLow - Clean Citrus
🌿 Phenolic ProfileNone
🌱 Hop PairingsCascade/Centennial
🌾 Malt PairingsPale Malt
🍺 Similar BeersSierra Nevada-style
❄️ Storage Temp4°C
📅 Shelf Life36 months