Fermentis Safale K-97 Yeast X 11.5g German Ale Yeast

Description

SafAle K-97 is Fermentis’s German ale yeast — a clean, delicate strain producing subtle floral and fruity character without the heavy esters or sulfur notes of some ale strains. It’s the go-to dry yeast for Kölsch, where a brief ale fermentation followed by cold conditioning produces a bright, crisp golden beer with barely-there yeast character. K-97 also performs well in Belgian Wits, Session Beers, and heavily hopped pale ales where a light fermentation touch is called for.

Brewing Notes

K-97’s slow flocculation is characteristic and important — the yeast stays in suspension longer than most ale strains, driving cleaner attenuation and better flavour integration before it finally drops. Plan for cold conditioning (lagering at 2–5°C for 2–4 weeks) after primary to pull protein haze and allow the yeast to fully clarify. The result is a beer that looks and drinks like a lager despite an ale fermentation process.

Beer Styles & Brewing Tips

K-97’s clean, delicate character makes it the natural choice when you want an ale yeast that doesn’t taste like an ale yeast — the defining challenge of Kölsch and similarly refined German styles.

Best styles: Kölsch (the style K-97 was built for — ferment cool, lager cold, serve bright in a Stange glass), German Golden Ale (a sessionable, informal cousin of Kölsch with the same low-ester profile and approachable character), Hoppy Blonde Ale (K-97’s clean neutrality supports dry-hopped pale ales where competing esters would be unwelcome).

Australian brewing tips:

• Kölsch is traditionally a low-gravity, session-strength beer (1.040–1.048) — brew light for authentic drinkability and easy fermentation management.
• Cold conditioning at 2–5°C for at least 2 weeks is essential — skipping this step produces a hazy, underattenuated beer that lacks the signature Kölsch crispness and clarity.
• K-97’s slow flocculation requires patience — don’t rush packaging. The beer improves dramatically with cold conditioning time.
• Pair with Hallertau Mittelfrüh or Perle hops for authentic German character; or experiment with Helga (AU Hallertau relative) for a local interpretation of the style.

In the Glass

Restrained floral and lightly fruity aroma. Clean malt backbone with minimal yeast-forward character. A subtle, elegant strain best suited to beers where clarity and drinkability define the style.

Buy SafAle K-97 German ale yeast in Australia at Yeast Platform — the authentic Kölsch dry yeast. In stock, fast shipping.

Recommended Hops for This Yeast

German ale yeast works best with restrained, noble or soft hops that support rather than overwhelm.

• Saaz Hops — Noble lager hop — spicy, herbal, the traditional choice for Kölsch and Altbier
• East Kent Golding Hops — Earthy, floral English noble — soft bitterness that doesn’t compete with the yeast
• Chinook Hops — Clean pine bitterness for dry-hopped Kölsch — subtle resin without dominating
• Cascade Hops — Low-rate late addition — citrus lift that works with the clean German ale profile