Troels Prahl, Director of Innovation and MD of White Labs Copenhagen explain the why, what and how of organic yeast. We are pleased to announce that 3 of our most popular yeast strains are now available in organically certified format in the US. WLP001-O California Ale Yeast® WLP002-O English Ale Yeast WLP830-O German Lager Yeast Available in both 0.5L or 2L Pure Pitch. All organic yeast strains are produced by White Labs Copenhagen We source locally produced organic malt extract to create the all-malt wort in which the yeast is propagated using the patented FlexCell™ process All organic yeast strains are identical to the conventional version