WLP090 San Diego Super Strain - White Labs Yeast Pure Pitch Next GenA super clean, super fast fermenting strain. A low ester producing strain that results in a balanced, neutral flavor and aroma profile. Alcohol tolerant and very versatile for a wide variety of styles. Similar to California Ale Yeast WLP001 but it generally ferments faster. White Labs PurePitch The industry first pitchable yeast grown and delivered in the same package. Introducing White LabsPurePitch, the result of a 5 year journey to create the