Harvest Lab Intern
Listed on 2026-07-10
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Science
Research Assistant/Associate
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Seasonal Full-Time Napa, CA, US
Salary Range: $21.00 To $25.00 Hourly
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 at our south Napa production facility, for Duckhorn Vineyards. 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- 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 samples (Brix, TA, pH, alcohol, sulfur, etc.).
- Prepares solutions, maintains chemicals, and calibrates equipment.
- Supports cellar with additions and inoculations as needed.
- Cleans and performs preventative maintenance of instruments and equipment.
- Performs accurate data entry and tracking using Microsoft Excel and Innovint.
- Prepares trials and blends upon request.
- Must be able to work a flexible schedule and work overtime, including weekends during peak harvest period.
- Basic lab skills – including pipetting, titration, and ability to follow protocols
- High school diploma required, bachelor’s degree in enology or science preferred.
- Must have effective communication and interpersonal skills.
- Intermediate reading, writing, and math skills.
- Must have intermediate English communication skills, both written and verbal.
- Proficient in Microsoft Word and Excel.
- Dependability, independence, and initiative.
- Ability to stand for long periods of time and lift up to 45 lbs.
- The hourly range for this position is $21-25.
- Discounts on wine and merchandise.
- Sick time accrual.
- A diverse team of coworkers that care about each other in a fun, exciting work environment.
- A company that promotes from within, provides great training and development programs and opportunities.
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