Fermentis SafAle™ S-33 10kg

SafAle™ S‑33 is a top‑fermenting yeast oriented toward fruity profiles, offering roundness and a full body. It is recommended for Belgian ales (Blonde, Dubbel, Tripel, Quadrupel), strong English ales (Imperial Stout) and New England IPAs.

This strain shows moderate attenuation (68–72%) and medium sedimentation, producing a light powdery haze when resuspended. It delivers expressive beers rich in esters and fermentation‑driven aromas.

The professional 10 kg format meets the needs of craft breweries seeking a stable, reliable and high‑performance yeast for large‑scale batches.

Why choose this product?

• Fruity profile ideal for Belgian ales, strong English ales and NEIPAs.
• Marked body and roundness thanks to moderate attenuation.
• Medium sedimentation for a natural haze suited to modern styles.

Technical specifications

• Type: active dry top‑fermenting yeast
• Strain: Saccharomyces cerevisiae
• Apparent attenuation: 68–72%
• Sedimentation: medium
• Flocculation: low to medium (no clumps)
• Aromatic profile: fruity, medium esters
• Ideal fermentation temperature: 18–26 °C
• Dosage: 50–80 g/hl
• Ingredients: yeast, sorbitan monostearate emulsifier (E491)
• Viable yeast: > 1.0 × 10¹⁰ cfu/g
• Purity: > 99.999%
• Lactic acid bacteria: < 1 cfu / 10⁷ cells
• Acetic acid bacteria: < 1 cfu / 10⁷ cells
• Pediococcus: < 1 cfu / 10⁷ cells
• Wild yeast: < 1 cfu / 10⁷ cells
• Packaging: 10 kg pack
• Storage: < 25 °C (6 months), ideally < 15 °C
• Shelf life: 36 months

Technical Tips

• To maximise fruity esters, ferment in the upper range (22–26 °C).
• For a drier beer, adjust the mash temperature since attenuation is moderate.
• In NEIPAs, medium sedimentation helps maintain a stable haze.

Technical FAQ

• Is it suitable for very dry beers? No, its moderate attenuation produces a rounder beer; choose another strain for a dry finish.
• Can it be used for NEIPAs? Yes, it is even recommended for its fruity profile and natural haze.
• Can it be pitched without rehydration? Yes, the E2U™ certification allows direct pitching.
• How long can an opened bag be stored? Up to 7 days at 4 °C, tightly sealed.