LalBrew Diamond™ Lager Yeast – Traditional Lager Yeast for Crisp, Clean Fermentations (11 g | 0.38 oz) Brew authentic lagers with precision and clarity. LalBrew Diamond™ is a classic bottom-fermenting yeast sourced from the Doemens Academy Culture Collection in Germany. It delivers clean, neutral flavor and high-performance fermentation, making it ideal for traditional and modern lager styles. Crisp. Clean. Reliable. Traditional German Lager Fermentation Made Easy. Craft refined lagers with high flocculation, smooth attenuation, and authentic flavor. This Saccharomyces pastorianus strain ferments cleanly at cool temperatures (10–15°C / 50–59°F) and is perfect for styles like Pilsners, Bocks, Märzens, and Dunkels.