SAN DIEGO (July 23, 2019) – Liquid yeast and fermentation company, White Labs, has made all Core and Vault wine strains available for professionals, retailers and home winemakers to purchase throughout the duration of winemaking season.

Liquid yeast has many advantages including that there is no rehydration required, it’s ready to inoculate straight into juice. The number of strains available in liquid form is greater than dry yeast options and many would agree that liquid yeast provides a more robust flavor profile across many different varietals as well.

Home winemakers can purchase Vault strains at local retail shops during winemaking season—mid-July through October. In addition to the seasonal release of Vault wine strains, home winemakers can also pick up our Core strains, which are available for purchase year-round.

Retailers can expand their wine strain offerings by purchasing the Vault strains from mid-July to October.

For professionals, Vault wine strains are available in 0.5L (nanos) and 2L PurePitch® packages. Additionally, customers still have the option to order Custom Pour packaging but during July-October, the minimum order is reduced to 500mL with a 2-14 day lead time.

White Labs will also offer WLP675 Malolactic Cultures to convert malic acid to lactic acid, which in turn decreases acidity and helps to soften and/or round out some of the flavors in wine. These liquid cultures are available in vials to inoculate 6-gallons or 1-liter sizes to inoculate 60 gallons.

For those looking to get their products tested, they can send samples to the company’s independent analytical lab. Recommended tests include LS4071 Juice Analysis, which tests juice samples for titratable acidity, pH, Brix, YAN, and malic acid, and LS4070 Comprehensive Testing For Wine And Cider, that tests finished wines for titratable acidity, pH, SO2, alcohol by volume, malic acid, and Brix.

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About White Labs

White Labs Inc. is an international company headquartered in San Diego that provides liquid yeast, fermentation products, services, analysis and education to professionals and enthusiasts alike. Continually raising the bar in the art of fermentation, White Labs stretches the limits of science to set new standards in purity and freshness. From the industry’s first pitchable liquid yeast to a complete revolution in the way it’s propagated and packaged, the White Labs innovative spirit is tireless. For more information on White Labs and its various products and services, please visit

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