Seasonal Wine Lab Intern: Fermentation & Analysis

Duckhorn Wine Company; Omus (CA); On-site; USD 30,000 - 34,000; Full time

Benefits offered by this job

Discounts on wine and merchandise

Sick time accrual

Diverse team environment

Internal training and development

Job summary

Duckhorn Wine Company in Geyserville, CA is seeking a Seasonal Lab Intern to support fermentation monitoring, sampling, and wine analysis. You will perform analyses (Brix, TA, pH, alcohol, sulfur), prepare solutions, calibrate equipment, and assist with cellar operations while maintaining accuracy and teamwork.

This role requires basic lab skills, a high school diploma (bachelor’s in enology or science preferred), and solid communication.

Qualifications

• Basic lab skills including pipetting, titration, and following protocols.
• Effective written and verbal communication and interpersonal skills.
• Intermediate reading, writing, and math skills.
• Intermediate English communication skills.
• Proficiency in Microsoft Word and Excel.
• Dependability, independence and initiative.
• Ability to stand for long periods and lift up to 45 lbs.

Responsibilities

• 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 overtime, including weekends during peak harvest period.

Skills

Lab skills

Pipetting

Titration

Communication

English proficiency

MS Excel

Data entry

Teamwork

Physical stamina

Education

High school diploma

Bachelor’s in enology or science (preferred)

Tools

Microsoft Excel

Innovint

Job description

Duckhorn Wine Company in Geyserville, CA is seeking a Seasonal Lab Intern to support fermentation monitoring, sampling, and wine analysis. You will perform analyses (Brix, TA, pH, alcohol, sulfur), prepare solutions, calibrate equipment, and assist with cellar operations while maintaining accuracy and teamwork.

This role requires basic lab skills, a high school diploma (bachelor’s in enology or science preferred), and solid communication.