Since late August, White Labs has been shipping to commercial breweries WLP001 California Ale Yeast in PurePitch packaging.
Along with utilizing the new FlexCell process, PurePitch will reduce shipping costs for many shipments of most WLP001 California Ale Yeast packages due to the lighter packaging as compared to the previous commercial bottles. The yeast should continue to be stored at 4°C and should be kept refrigerated until time of use.
The FlexCell process uses patented proprietary technology to cultivate the yeast and reduces risk of contamination. Additionally, this process reduces the environmental footprint. For all details regarding the new FlexCell technology, PurePitch packaging, and WLP001 California Ale Yeast along with other strains, please check out http://www.whitelabs.com/innovation.
Also, a new video showing one of the brewers receiving and using PurePitch is shown below. (Thanks to brewmaster Steve Kinsey and Kinetic Brewing in Lancaster, CA).