Harvest Lab Internship

Job Description:

About Materra Cunat Family Vineyards:

Materra Cunat Family Vineyards is a family-owned estate vineyard and winery, located in the Oak Knoll AVA of Napa Valley, between Big Ranch Road and the Silverado Trail. This AVA is known for producing fresh, expressive white wines and elegant red wines. We own and farm various vineyard sites within the AVA, and produce Cabernet Sauvignon from select sites.

Our white varietals include Chardonnay, Sauvignon Blanc, Viognier, Semillon, and Albariño. Our red varietals include Merlot, Malbec, Petit Verdot, Cabernet Franc, Cabernet Sauvignon, Syrah, Grenache, and Mouvedre.

Materra’s winemaking facility acts as our estate winery, as well as a custom-crush winery. Working at Materra gives our interns a great opportunity to see fruit from many different regions in California and observe an array of winemaking practices and varieties. If you are wanting to get a glimpse at all the styles and varietals that California has to offer, this is an ideal place to work.

Job Summary:

We are looking for a lab intern for harvest 2026 that will report to the Assistant Winemaker and Cellar Master. The lab intern will be working primarily in the winery and will gain some experience in the vineyard. Lab interns will complete duties, such as:

- Fermentation monitoring (morning Brix & temperatures)
- Entering fermentation data into a shared spreadsheet
- Fermentation additions
- Inoculations
- Collecting wine and juice samples for in-house analysis and ETS
- Juice Analysis (Y15 analyzer, pH meter, Refractometer)
- Wine Analysis (Free SO2, VA, Glucose-Fructose, Malic Acid with the Y15)
- Collecting cluster weights and berry weights during fruit intake
- Some cellar work
- Vineyard sampling possible

Start in August.

Hours:

- Beginning of harvest: 5-day work week with 8 hour days
- Peak of harvest: 6-day work week (can expect some overtime)

Our lab intern can expect some overtime during harvest, especially at its peak.

Experience and Qualifications:

- BS or BA Degree in Enology, Viticulture, Chemistry, Biochemistry, or Food Science preferred but not required
- 2 previous harvest experiences in the lab, or the cellar, preferred but not required. We are happy to train those that are willing to learn.
- Must be organized and detail oriented
- Someone who is reliable, enthusiastic, and enjoys working in a tight knit team would be a great fit here
- Ability to work 6 days a week during peak harvest, and flexibility with hours according to harvest demands
- Must have own car and housing

We are accepting nonimmigrant NAFTA Professional (TN) visas for those that are eligible.

Physical Requirements:

- Ability to climb stairs
- Ability to lift and carry 30 pounds
- Ability to stand and walk

Hourly Wage: $22

Our production team also gets a free lunch once a week, during harvest.

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