4007
Malolactic Blend
Our blend is recommended for any wine requiring malic acid reduction. It will cover a broad range of temperature and pH conditions.
Yeast and Cultures
Professional Winemaking
For the most discerning professional winemaker, we have fermentation products for the wine style you’re looking to create. Find the right fit for your needs, and produce wines of the highest quality and expression.
Scroll down
The Yeast That Legacies Are Built Upon.
Since 1986, the same Wyeast yeast strains that spurred the craft brewing revolution, and defined the meaning of quality and integrity, continue to set the precedent for winemakers and fermentation professionals to this day. Our heritage collection of proven premium liquid yeast and cultures creates wine worthy of a legacy: begin your legacy with us.
Professional Winemaking Yeast
Technical Data Sheet
Yeast management, instructions for use, recommended pitch rates, specifications, and more.
Professional Malolactic Bacteria
Technical Data Sheet
Bacteria management, instructions for use, recommended pitch rates, specifications, and more.
No Equivalent.
Nearly four decades of expertise in crafting yeast for winemakers around the world shows that there’s more to a strain than its name and number. Wyeast yeast is unparalleled in quality and performance, guaranteed.
-
Purity
A rigorous quality control and quality assurance program utilizes both traditional methods and modern innovations to guarantee culture purity and single morphology down to the threshold of detection. Cultures, ingredients, and equipment are analyzed and held to strict specifications throughout the entire propagation process. Complete QA/QC analysis on every finished product means our strict specifications are always met before your order ships.
Analyses include:
• Plating on general and selective media for detection of viable yeast and bacteria contaminants
• Colony morphology on differential agar
• Cell morphology with phase contrast microscope
• qPCR confirmation of commercial yeast species (S. cerevisiae, Brettanomyces, and more)
• qPCR screening for the detection of cellar contaminants -
Precision Cell Density
Wyeast provides the most precisely packaged yeast slurry to guarantee consistent, reliable fermentations in your winery. No range or minimum – we prepare our products at exactly 1.2 billion viable cells per milliliter with advanced cellometer & validation processes. This results in > 99.9% viability for your target pitch rate – delivering the most accurate cells per mL per Plato calculations for reproducible fermentations.
-
Customizable Packaging & Pitch Rates
With over 35 years of experience in the winemaking industry, our liquid yeast is proven to offer the ideal balance for successful fermentations without over-or-under pitching. Custom packaging options and a low minimum volume on every strain means all wineries and fermentation sizes can be accommodated.
-
Optimal Propagation Conditions
Every strain is initiated from our ultra-low temperature archive in order to maintain genomic stability, ensuring the culture maintains consistent fermentation kinetics, flavor profiles, and flocculation characteristics.
Wine yeast cultures are propagated using a premium nutrient-rich medium under optimal aeration and temperature parameters for growth and cell health.
Malolactic bacteria cultures are propagated on a nutrient-rich, fruit-juice based medium.
-
Fresh without Compromise
Wyeast ships directly from our facility to yours, guaranteeing the freshness and integrity of every order. One production facility means consistency and reliability, batch after batch.
More than Premium Yeast.
The foundation of our business and operations are built to support yours.
-
The Original Liquid Yeast Collection
Authentically sourced and isolated by our founders, microbiologists, friends, and collaborators from around the world since 1986. Wyeast’s heritage culture collections have been curated for decades to offer commercially proven and reliable strain selection for any fermentation style. A genuine Wyeast strain comes with more than its history – it comes with a legacy of quality & integrity.
-
Product Warranty Guarantee
We back our products with the guarantee that they will meet or exceed our professional specifications, and will perform as expected under typical fermentation conditions when they hit your must. If not, we will make it right.
-
Licensed Food Manufacturing Facility
Uncompromising compliance and adherence with food manufacturer regulations by the US Food & Drug Administration and the Oregon Department of Agriculture means every batch is prepared from start to finish under strict protocols and backed by Wyeast’s Product Warranty Guarantee.
-
Customer Care
Providing comprehensive customer service and technical support are core values of our business. Our representatives, professional brewers, and food science experts are eager to assist with your questions at any phase of your winemaking schedule – from strain selection and pitch rate recommendations to fine-tuning your fermentation conditions and troubleshooting any situation that may arise.
-
Kosher Certified
All Wyeast cultures and supporting fermentation products are certified Kosher by the Orthodox Union.
Featured Wine Strains
4021
Dry White/Sparkling
Used in many white wine fermentations and also some red wines. Also used for secondary fermentation of barley wine. Ferments crisp and dry, ideal for base wines in making sparkling wine. Low foaming, excellent barrel fermentation, good flocculating characteristics.
4242
Fruity White
Produces extremely fruity profile, high ester formation, bready aromas with vanilla notes. Allows fruit character to dominate aroma and flavor profile. Finishes slightly sweet and soft.
