Harvest Winemaking Internship
Listed on 2026-03-12
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Research/Development
Research Scientist -
Manufacturing / Production
Position Purpose
The Harvest Winemaking Intern position allows recent college graduates the opportunity and exposure to winemaking projects and tasks which may coincide with the Intern’s academic and/or career interest. This allows for broad exposure to the organization with supervision and mentoring, which creates a professional network and real-life work experiences during the harvest season.
Under general supervision, the Harvest Winemaking Intern is responsible for providing technical and logistical support by performing various Harvest-related winemaking duties which may vary depending on location. This position may also assist in implementing and monitoring winemaking trials and small experimental lots and may work with production teams to perform routine duties as directed.
Functional Responsibility Essential Duties Geyserville- Assists winemaking in all activities
- Creates daily tasting sheets
- Monitors temperatures: set points versus actual, adjust as needed and troubleshoot
- Prepares list of first additions (water, yeast, acid, special add) and mid-fermentation adds, confirming no double adds
- Assists in managing and monitoring winemaking trials and special projects
- Organizes and tracks ingredient inventory
- Monitors analysis and raises red flags
- Monitors and manages ML Inoculum and ML tank/bbl monitoring
- Prepares stirring and air additions, racks and returns
- Monitors alcoholic fermentation tank cards
- Sampling and setup for tastings, analysis, and winemaking trials
- Vineyard site visits to monitor grape development
- Assists with monitoring juice, primary fermentations, secondary fermentation temperatures and activities
- Sets up sensory evaluations
- Participates in Micro Ox projects
- Assists in small lot fermentations
- Performs lab bench trials for fining, wine repairs, tastings, bentonite trials, etc.
- Collects data for research and development projects
- Conducts Harvest related lab analysis
- Prepares special ingredient additions
- Performs various administrative tasks
- Performs general quality checks
- Conducts fermenter Brix/Temp analysis
- Assists in managing and monitoring winemaking
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