White Labs California IV Ale Yeast

White Labs WLP019 California IV Ale Yeast is more fruity than WLP001, and slightly more flocculent. It is a moderately clean strain with a low ester profile and less sulfur production than WLP051.

White Labs yeast is world-renowned for quality and innovation, certified kosher, GMO free, and subject to thorough quality analysis before being packaged. Beverage Factory is closer to White Labs than any other online reseller, allowing us to provide the freshest yeast possible with the highest vitality.

This yeast comes packaged in White Labs' PurePitch packaging using the revolutionary FlexCell process, which creates yeast that has never been transferred or exposed to the environment. The PurePitch packaging is a recyclable, flexible material that allows for increased breathability, reducing the chance of gas buildup and maintaining the optimal environment for yeast.

• Seasonal Availability: April-June
• Attenuation: 70-75%
• Flocculation: High
• Optimum Ferment Temperature: 66-70 degrees Fahrenheit (18-21 degrees Celsius)
• Alcohol Tolerance: High

Due to variable temperatures and transit times we are unable to guarantee that the yeast will remain at the ideal temperature for the entire journey. For increased protection, we suggest adding ice packs and insulated packaging, available below as optional upgrades. If you are ordering yeast during summertime or are located in a warmer climate, we recommend ordering dry yeast rather than liquid yeast.