Ardennes Belgian Ale A very versatile and production-friendly Belgian ale yeast, producing balanced Belgian esters and spicy notes. One of the rare Belgian strains which flocculates relatively well, making repitching and/or cropping easier when compared to other Belgian yeasts. Attenuation: 72-80% // Optimum Temp: 18.3-24.4°C (65-76°F) // Alcohol tolerance: High // Flocculation: Medium-High Do I need to make a starter? The pitch rate provided is suitable for primary fermentation of standard gravity beers (<1.065SG). However, for high gravity beers or when the yeast is close to or past the expiry date, we do recommendmaking a yeast starter.