Liquid Yeast YF‑402 Herr Weizen 100 mL

YF‑402 Herr Weizen is a German liquid yeast renowned for Hefeweizen style wheat beers. It produces distinct fruity and spicy esters with notable banana and clove notes. Fermentation temperature allows you to adjust the aromatic profile: warmer for enhanced fruity esters, cooler for stronger spicy phenols. Its low flocculation leaves a slight haze typical of traditional wheat beers. Reliable and expressive, it is ideal for brewers seeking to recreate the authentic character of German Weissbier.

Why choose this product?

• Authentic fruity and spicy profile for Hefeweizen and Weissbier.
• Reliable and expressive fermentation with traditional haze.
• Ready‑to‑use format for home brews of 20–25 L (gravity ≤ 1.055).

Technical characteristics

• Strain: Saccharomyces cerevisiae
• Fermentation type: Ale
• Origin: German
• Attenuation: 73–77 %
• Flocculation: Low
• Optimal temperature: 18–24 °C
• ABV tolerance: up to 10 %
• Recommended styles: Weissbier, Hefeweizen, German Wheat Ale
• Format: 100 mL
• Content: > 100 billion viable cells
• Equivalent: 1 packet of dry yeast 11 g
• Suitable for: 20–25 L brews (gravity ≤ 1.055)
• Storage: 2–5 °C, up to 4 months
• Nutrients or starters not included

Rolling Beers Tips

• Ferment at 18–20 °C for a spicy and dry profile, or at 22–24 °C to enhance banana notes.
• Properly oxygenate the wort before pitching for vigorous fermentation.
• Shake the vial before use to homogenize the yeast.

Product FAQ

• Is it suitable for German wheat beers? Yes, it is specifically developed for Hefeweizen and Weissbier styles.
• Should I prepare a starter? Not for standard brews, but recommended for strong beers (> 1.065).
• Can it be stored for several months? Yes, up to 4 months at 2–5 °C in its sealed package.