Lalvin BM4x4
(Saccharomyces cerevisiae)

Valued by winemakers seeking mid palate structure while at the same time respecting varietal expression. "Dynamic synergy" - the sensory attributes of LALVIN BM45™ with greater fermentation reliability in difficult conditions.

  • Suitable for organic wine (EU 2018/848)
  • Suitable for NOP
  • Vegan

Product detailsWine typesTechnical informationProduct documentationPairing
Product DescriptionDocumentation

Product details

The «Dynamic Synergy» process of optimizing positive interactions between yeast was successfully applied on LALVIN BM45™, resulting on a more efficient and secure yeast called LALVIN BM4X4™. During the yeast growth phase, LALVIN BM4X4™ releases a significant quantity of polysaccharides. This results in a round mouthfeel, increases colour stability and lowers the astringency of tannin (by stabilising and binding polyphenols in the must). LALVIN BM4X4™ is suited for red wines, where mouthfeel, colour and reliable fermentation kinetics are sought. It is also well suited for full bodied white wines, bringing roundness to the mouthfeel and enhancing aroma.

Selected by Collaborative study with INRAe (Montpellier, France)

Wine types


Technical information

  • General sensory contribution: Enhances varietal characters, mouthfeel, colour stability, and complexity
  • Competitive factor: Active
  • Minimum temperature: 16 °C
  • Maximum temperature: 28 °C
  • Nutritional needs: High
  • MLF compatibility: Not really recommended
  • SO2production: Moderate
  • Fermentation rate: Moderate
  • Alcohol tolerance: 16 %
  • Glycerol production: No info

Product documentation


  • Chardonnay
  • Malbec
  • Sangiovese
  • Syrah
  • Tannat
  • Tempranillo