ETS Laboratories

09/05/2026

St. Helena is celebrating, so our Saturday drop-offs will look a little different today, starting at 3pm. Our team will be in the former Bank of America parking lot to collect samples. We hope to see you there!

09/04/2026

09/03/2026

Interpretation of Smoke Impact on Grapes is Evolving Science-

Wildfires can have a devastating impact on vineyards, but each fire is a unique event, and we learn from every one. Distance from the fire, duration of smoke contact, fuel source, and the metabolic status of the vines all influence the degree of impact. Interpretation is further complicated by the fact that some varietals—including Pinot Noir—naturally contain low levels of several compounds associated with wildfire smoke, even in grapes with no smoke exposure. This was the case with the 2026 Woodside fire on California’s North Coast, which caused varying levels of smoke impact across affected vineyards. Because these naturally occurring compounds can appear at varying concentrations in non-impacted grapes, they complicate efforts to interpret smoke marker analysis for vines exposed to low smoke levels. The 2026 Harvest Guide Addendum provides two case studies to show how these naturally occurring compounds can make it difficult to interpret results from smoke marker analysis.

Read it Here: https://issuu.com/etslabs/docs/ets_harvest_guide_2026_325437a4514d06/59

09/01/2026

With harvest season underway, we invite you to check out the 2026 ETS Harvest Guide with our newly updated Wildfire Addendum:

https://issuu.com/etslabs/docs/ets_harvest_guide_2026_325437a4514d06

08/28/2026

We hope to see you in Walla Walla and Newberg this weekend! 🍇

08/17/2026

Juice chemistry analysis provides winemakers with a comprehensive understanding of muscomposition at harvest, extending beyond traditional measurements such as tartaric acid, pH, and °Brix. This broader view is important because the composition of grape juice can vary significantly from one vintage to the next.

Together, these advanced analytical tools provide the insight needed to make informed vineyard management decisions, optimize harvest timing, guide fermentation, and influence wine composition.

Juice chemistry is the foundation for the resulting wine. Producing wines with specific targets for ethanol and acid balance, while avoiding fermentation-related problems, requires a thorough understanding of the juice chemistry.

Understanding these changes allows winemakers to achieve their desired wine style.

Read the whole article in this year's Harvest Guide:

Dive into our extensive resources on the topic that interests you. It's like a masterclass to be explored at your own pace.

08/07/2026

Our extended hours for the 2026 Harvest begin this weekend!

St. Helena
Saturday, August 8th: Open 9:00 a.m. to 4:00 p.m.
Sunday, August 9th: Open 9:00 a.m. to 2:00 p.m.

Healdsburg
Saturday, August 8th: Open 9:00 a.m. to 4:00 p.m.
Sunday, August 9th: Lab not open for walk-in sample drop-off; Courier service available; Drop box samples will be picked up at 12:00 p.m. and delivered to our St. Helena location.

Paso Robles
Saturday, August 8th: Open 9:00 a.m. to 2:00 p.m.
Sunday, August 9th: Lab not open for walk-in sample drop-off; Drop box samples will be processed Monday morning.

07/02/2026

Happy 4th of July from ETS Laboratories! We hope you have a safe and enjoyable holiday.