Gusmer Analytical Services  Gusmer Sonoma  |  9025 Old Redwood Hwy, Ste. E, Windsor, CA 95492  |  707.836.1056 Gusmer Napa  |  640-D Airpark Road, Napa, CA 94558  |  707.224.7903  VIEW ALL TESTS DOWNLOAD WINE ANALYSIS FORM TO SUBMIT LAB SAMPLES Harvest is fast approaching, and it is time to make one of the most important decisions of the year: When to pick? Go to the Gusmer Napa Lab or Gusmer Sonoma Store for full juice panels with rapid turnaround times. Contact Us for full details. (Sonoma 707.836.1056 / Napa 707.224.7903) Most winemakers sample their fruit regularly to determine the optimal time to harvest, but often testing of those samples is limited to Brix, pH, and TA.  Additional analysis can help to better inform your harvest decisions, but running individual tests for acids, sugars, and nitrogen compounds can be time-consuming and expensive. At the Gusmer Napa Lab and Sonoma Store our analytical teams utilize

Crush is coming, and Gusmer wants to be your go to provider for all your winemaking solutions. Gusmer offers a full range of innovative enological tools that includes: Fermentation and processing aids, filtration media and equipment, analytical products and instrumentation, and analytical laboratory services. For ordering and technical support, click here to contact your Technical Sales Rep Gusmer's Full 2025-26 Interactive Winemaking Catalog   Featured Products Novonesis Yeast - FrootZen Available in Frozen & Freeze-Dried Viniflora FrootZen is a pure strain of yeast Pichia kluyveri strengthening the fruity characteristics of the wine and ensuring bio-protection. FrootZen™ can be used at several stages of the process as a pre-fermentation product (on harvested grapes, on crushed grapes, or in must). The culture is recommended when making white and rosé, but can also be used in red wines. Learn More - FrootZen View all Novonesis Yeast Strains Renais

Crush is coming, and Gusmer wants to be your go to provider for all your winemaking solutions. Gusmer offers a full range of innovative enological tools that includes: Fermentation and processing aids, filtration media and equipment, analytical products and instrumentation, and analytical laboratory services. For ordering and technical support, click here to contact your Technical Sales Rep Gusmer's Full 2025-26 Interactive Winemaking Catalog   Featured Products Novonesis Yeast - FrootZen Available in Frozen & Freeze-Dried Viniflora FrootZen is a pure strain of yeast Pichia kluyveri strengthening the fruity characteristics of the wine and ensuring bio-protection. FrootZen™ can be used at several stages of the process as a pre-fermentation product (on harvested grapes, on crushed grapes, or in must). The culture is recommended when making white and rosé, but can also be used in red wines. Learn More - FrootZen View all Novonesis Yeast Strains R

Gusmer's Napa laboratory boasts cutting-edge analytical chemistry capabilities, an essential part of being the go to provider for your winemaking solutions. Our analytical chemists are TTB Certified and we ensure the quality of our services as a member of a worldwide interlaboratory testing program endorsed by the ASEV and a rigorous QC program. If our lab helps you identify a wine problem, we often have information on products, technology or operations that can help resolve that problem, now and in the future. POPULAR SEASONAL WINE ANALYSIS Bentonite Fining Trials (set of 5)  |  $60 Heat/Cold Stability  |  $15 - $35 Pre-bottling Panels |  $80 - $163 Direct and Membrane Plating  |  $25 - $60 VIEW ALL TESTS DOWNLOAD WINE ANALYSIS FORM TO SUBMIT LAB SAMPLES  The Gusmer Napa Lab accepts drop-off samples or shipped from all wineries in the US and has a quick turn-around on many offerings. Contact us at 707.224.7903 for full details or learn more

The nutritional health of yeast can determine the success – or failure - of the resulting wine. To get the most out of your yeast, a high-quality nutrient product is essential. “High quality micronutrients are essential to the healthy development of the yeast and a robust fermentation,” emphasizes Bill Merz, Gusmer Enterprises Inc’s Director of West Coast Beverage Sales and a winemaker himself. “The solubility of those nutrients is also key to yeast cell access. That’s exactly the kind of scientific research Gusmer has done and the superior products it provides.” Gusmer Enterprises, Inc., a leading manufacturer and supplier of fermentation and filtration products for the beverage, food and pharmaceutical industries since 1924, specializes in the distribution of yeast nutrition developed to ensure healthy, vigorous and clean wine batch fermentation, vintage after vintage. Included in Gusmer ‘s comprehensive portfolio of nutritio

Thank you to everyone who came out to visit us at the 2025 Unified Wine Symposium! If you missed the tradeshow, we have included some highlights below. Please feel free to reach out to your local Gusmer Enterprises technical sales rep for more info.                                 www.GusmerWine.com 

CDR WineLab Overview Video  (3 minutes)   ** CDR WineLab In-Stock  ** Immediate shipping available   CUSTOMER SUCCESS STORY  “The CDR WineLab Junior has expanded our winery’s in-house analysis capabilities. It is an excellent option for copper analysis and a tool we use constantly for wine bottling preparation and quality control. The equipment is easy to use, easy to maintain, and easy to replenish consumables due to the constant communication and support that Gusmer provides its customers." Victoria Mayer – J. Lohr Winery Lab Supervisor Paso Robles, CA  CDR ANALYSIS ON WINE AND MUST •  Alcohol by Volume •  Acetic acid (volatile acidity) •  Fermentable Sugars •  Total Acidity •  L-Lactic Acid •  L-Malic Acid •  Free sulfur dioxide •  Total sulfur dioxide •  Yeast Assimilable Nitrogen     (YAN) •  Galacturonic Ac

ST. HELENA, Calif., (August 2024) – ETS Laboratories is proud to announce a significant milestone in the company’s history: the 25th work anniversary of Dr. Eric Hervé, Research Scientist, Benoit Largeteau, Technical Operations Coordinator, and Ascencion Ayala, Sample Logistic and Client Support Specialist. This remarkable achievement reflects not only their unwavering dedication and exceptional contributions, but also the company’s commitment to nurturing and retaining top talent. Since joining ETS in 1997, Dr. Eric Hervé has been an integral part of the organization’s growth and success. Initially, Hervé joined the team to conduct a cork research program, but since then he has developed new analyses, conducted applied research programs, and investigated wine flavor and taint issues. Hervé’s innovative approach and relentless pursuit of excellence have played a crucial role in the success and growth of ETS Laboratories. Be

Harvest is fast approaching, and it is time to make one of the most important decisions of the year: When to pick?  Go to the Gusmer Napa Lab or Gusmer Sonoma Store for full juice panels with rapid turnaround times. Contact Us for full details. (Sonoma 707.836.1056 / Napa 707.224.7903) Most winemakers sample their fruit regularly to determine the optimal time to harvest, but often testing of those samples is limited to Brix, pH, and TA.  Additional analysis can help to better inform your harvest decisions, but running individual tests for acids, sugars, and nitrogen compounds can be time-consuming and expensive. At the Gusmer Napa Lab and Sonoma Store our analytical teams utilize the latest FTIR (Fourier Transform Infrared Spectroscopy) technology to run full juice panels at a low price with rapid turnaround times. POPULAR HARVEST ANALYSIS OFFERINGS  Rapid Grape Juice - $50 (50 mL volume required) Analysis includes: Brix, TA, pH, Malic Acid, NOPA, Ammonia, & Y