![Image top left](https://admin.lallemandwine.com/wp-content/uploads/2023/08/Micro-organisme-3D-YEAST-REF--1200x679.jpg)
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This exclusive Lallemand production process, developped in 2005, optimises the timing for the addition of nutrients (nitrogen-containing molecules, vitamins and trace minerals) during culture growth and expansion, prior to drying.
YSEO™ signifies Yeast Security and Sensory Optimisation, a unique Lallemand yeast production process to help overcome demanding fermentation conditions.
![overlapped image](https://admin.lallemandwine.com/wp-content/uploads/2023/08/2023.05.04_Lallemand_LEV-9-1200x800.jpg)
YSEO™ improves the reliability of alcoholic fermentation by improving yeast quality and performance and reduces the risk of sensory deviation even under difficult conditions.
![Image bottom right](https://admin.lallemandwine.com/wp-content/uploads/2023/08/yeast-1200x808.png)