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Harvest Lab Intern

The Duckhorn Portfolio

windsor, ca, United-States Full-time June 18, 2026
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Vacancy Description

Seasonal Lab Intern

The Duckhorn Portfolio is North America's premier luxury wine company. We were established in 1976 by Dan and Margaret Duckhorn. Today, our portfolio features some of North America's most revered wineries, including Decoy, Paraduxx, Goldeneye, Migration, Canvasback, Calera, Kosta Browne, Greenwing and Postmark.

We seek a seasonal lab intern to join the team. This role is responsible for fermentation monitoring, tank and barrel sampling, and wine analysis. It is expected that repeatable, accurate sampling and analyses are provided; and a positive work environment is maintained through active team contribution and open communication.

What we will ask you to do:

  • Monitors daily fermentation.
  • Evaluates and communicates sensory characteristics of fermentations to winemaking team.
  • Follows lab protocols to sample from tanks, barrels, and vineyards.
  • Performs analysis of grape and wine ...

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