Russell Moss joined the grape and wine team at Cornell as a lecturer in viticulture in August of 2018. Prior to coming to Cornell, he managed ultra-premium and luxury vineyards in New Zealand, Oregon, and Burgundy, and taught viticulture courses at Chemeketa Community College in Oregon. Mr. Moss launched his own boutique ultra-premium Oregon wine brand, Bocamo, in 2017. He is also a vineyard management consultant and continues to maintain a residence in Salem, Oregon. Mr. Moss holds a Bachelor’s degree in Viticulture and Enology from Lincoln University in New Zealand as well as a Master of Science in Horticulture (viticulture) and a Master of Life Science in Food Science and Technology (enology) from Virginia Tech.
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Overview and Courses
Have you wondered about the work that goes into making a perfect glass of wine that engages the senses? There are many commonly held beliefs about wine grape production, with some more true than others. Yet one thing is certain: Winemaking is so much more than just crushing grapes.
In this certificate program, you will take an introductory look at the art and science of viticulture and enology, or the study and practice of grape farming and winemaking. You will embark on a journey that will take you from unearthing the historical foundation of this timeless tradition to exploring modern challenges and developments, all while sharpening your skills toward becoming a wine professional and an expert at the table. As you go on this winemaking journey, you will enhance your knowledge of grape production and winemaking from the ground, to the grape, to the glass.
Note: You will be asked to purchase wines and other materials for various activities and projects.
The courses in this certificate program are required to be completed in the order that they appear.
Course list
To fully appreciate wine, you must first experience how to describe wines using sensory perception. In this course, you will be introduced to a standard evaluation protocol for wine tasting and determine what it takes to see, smell, and taste like a professional.
You will also discover important species and cultivars as you take a short journey through 8,000 years of historical wine periods. This grape-to-wine foundation will encourage your critical thinking on your journey toward becoming a wine professional. By the end of this course, your fundamental understanding and your practice in tasting will anchor your learning in subsequent courses, in your career, and at the table.
For this course, you will be asked to purchase five wines of global economic importance to help you refine your tasting technique.
- May 27, 2026
- Aug 5, 2026
- Oct 14, 2026
- Dec 23, 2026
- Mar 3, 2027
- May 12, 2027
Chardonnay, cabernet sauvignon, rosé, pinot noir, Port, Sherry, and Champagne: Each of these is a different type of wine with its own distinct sensorial characteristics. In this course, you will continue on your winemaking journey by determining the workflow and steps needed to produce these wine types. Although not an exhaustive dive into winemaking, you will be introduced to a foundation from which to start.
You will then design basic wine production plans for table, fortified, and sparkling wines as you consider what it means to be a wine professional. With this newfound knowledge, you will be set up for a more nuanced and clear path ahead in the wine industry and beyond.
You are required to have completed the following course or have equivalent experience before taking this course:
- Evaluating Wines
- Jun 10, 2026
- Aug 19, 2026
- Oct 28, 2026
- Jan 6, 2027
- Mar 17, 2027
- May 26, 2027
There is a common misperception that winemaking is little more than stomping on grapes. In this course, you will discover what truly goes into making wine. You will explore how to recognize sensory active compounds in wine and identify ways to manipulate them during the winemaking process. For the winemaker, it's a delicate balancing act; for the consumer, it can be a pleasant or unpleasant experience, especially if there are wine faults.
You will identify primary and secondary grape metabolites and how they can be controlled to create a balanced wine, all while preventing something from going wrong during the process. By the end, you will have a foundation from which to support continued learning about the operations and processes that surround winemaking, both in the vineyard and beyond.
You are required to have completed the following courses or have equivalent experience before taking this course:
- Evaluating Wines
- Developing Wine Production Plans
- Jun 24, 2026
- Sep 2, 2026
- Nov 11, 2026
- Jan 20, 2027
- Mar 31, 2027
- Jun 9, 2027
If you have ever visited or even driven by a vineyard, you may have wondered how grapevines are made and about the stages of grape berry development. In this course, you will dig deeper into the anatomy of vines and their important phenological stages. Whether you are planning on running a vineyard or simply studying them for personal growth, knowledge of key vineyard operations will improve your understanding of the crucial impacts on vine health as well as grape quality and quantity.
This course will explore basic wine-growing operations and how they achieve different viti- and vinicultural outcomes. You will also identify the skills to manage pests and diseases, which prove to be a consistent and critical piece of the winemaking puzzle. Using red or black table grapes, you will simulate what a winemaker might do for a sensory assessment to determine taste and ripeness.
You are required to have completed the following courses or have equivalent experience before taking this course:
- Evaluating Wines
- Developing Wine Production Plans
- Wine Ingredients
- Jul 8, 2026
- Sep 16, 2026
- Nov 25, 2026
- Feb 3, 2027
- Apr 14, 2027
- Jun 23, 2027
When it comes to selecting a site and establishing a vineyard, there are many considerations. Environmental conditions influence vineyard design, and non-environmental factors, such as access to plentiful labor, greatly impact grape growing and winemaking. Furthermore, the product itself is affected, as wines have sensorial differences related to climatic conditions and regions of the world.
In this course, you will take a broad look at factors of site selection, including climate, with a much deeper dive into ground operations such as row orientation and plant spacing. Together, these concepts will be applied as you devise a realistic and productive vineyard development plan.
You are required to have completed the following courses or have equivalent experience before taking this course:
- Evaluating Wines
- Developing Wine Production Plans
- Wine Ingredients
- Vineyard Operations
- Jul 22, 2026
- Sep 30, 2026
- Dec 9, 2026
- Feb 17, 2027
- Apr 28, 2027
Perhaps no topic is more hotly debated than climate change. One thing is certain: There are major climate implications on the wine grape industry. The wine professional is acutely aware of these challenges, while personally growing and continuously questioning commonly held beliefs of wine grape production.
In this course, you will explore various challenges and developments in modern viticulture. You will react to current issues and discover digital agricultural tools that help to offset these challenges. With this added knowledge, you will continue your journey to becoming a wine professional.
You are required to have completed the following courses or have equivalent experience before taking this course:
- Evaluating Wines
- Developing Wine Production Plans
- Wine Ingredients
- Vineyard Operations
- Site Selection and Vineyard Establishment
- Aug 5, 2026
- Oct 14, 2026
- Dec 23, 2026
- Mar 3, 2027
- May 12, 2027
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How It Works
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Faculty Author
Key Course Takeaways
- Gain a historical foundation for the grape-growing and winemaking industries
- Analyze wines with sensory perception
- Design wine production plans for table, fortified, and sparkling wines
- Recognize sensory active compounds in wine and how they can be manipulated through the winemaking process
- Identify basic wine-growing operations and how they achieve different viti- and vinicultural outcomes
- Recognize potential vineyard sites and devise a planting strategy
- Address current issues in viticulture

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Not ready to enroll but want to learn more? Download the certificate brochure to review program details.
What You'll Earn
- Winemaking Certificate from Cornell CALS
- 60 Professional Development Hours (6 CEUs)
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Who Should Enroll
- Aspiring winemakers
- Winery workers, assistant winemakers, and cellar hands
- Vineyard owners and managers
- Vineyard and wine marketers
- Wine distributors/retailers
- Sommeliers
- Home winemakers
Frequently Asked Questions
Wine quality is won or lost in hundreds of small decisions, from how you manage fermentation, stability, and vineyard risk to how you evaluate what is in the glass. Cornell’s Winemaking Certificate gives you a structured, practical path through the essential skills that working wine professionals rely on, without losing sight of the craft and enjoyment that bring people to wine in the first place.
In this certificate program, authored by faculty from Cornell’s College of Agriculture and Life Sciences, you will build real capability across the full grape-to-glass continuum. You’ll sharpen sensory evaluation using a standard tasting protocol; learn how to plan production workflows for major wine styles; understand how sugars, acids, phenolics, and aromas shape balance; and develop a working approach to fault detection and prevention. You’ll also broaden your viticulture foundation by learning vineyard operations, site selection, and how modern challenges like climate impacts and digital tools are changing vineyard management.
If you want stronger sensory confidence, practical production and vineyard decision-making skills, and a clear roadmap from fundamentals to modern realities, you should choose Cornell's Winemaking Certificate
Many online wine programs focus on passive content consumption or isolated facts. Cornell’s Winemaking Certificate is built around applied skill building, guided practice, and expert feedback so you can turn knowledge into better decisions in the vineyard, the winery, or the tasting room.
You learn through a cohort-based model with an expert facilitator who guides discussions and provides feedback on your project work, rather than leaving you to learn entirely on your own. The learning experience blends short, focused lessons with practical exercises such as guided tastings, sensory vocabulary development, and troubleshooting activities that connect causes to outcomes (for example, how oxygen management links to oxidation risk, or how nutrient and temperature choices can contribute to sulfide issues).
Cornell’s Winemaking Certificate also stands out for its end-to-end scope. Alongside enology fundamentals like fermentation, balance, and faults, you explore viticulture operations, site and vineyard design choices, and modern pressures such as drought, wildfire and smoke exposure, and the growing use of digital agriculture tools like NDVI and GIS for zoning, scouting, and targeted interventions.
Cornell’s Winemaking Certificate is designed for people who want a credible, practical foundation in viticulture and enology that connects directly to real production, evaluation, and vineyard decisions.
The Winemaking Certificate is a strong fit if you are:
- An aspiring winemaker building a structured base of skills
- Working in a winery as a cellar hand, assistant winemaker, or production team member and want stronger technical context for day-to-day work
- A vineyard owner or manager who wants to understand how vineyard choices affect finished wine quality and style
- In wine sales, distribution, retail, or marketing and want deeper product fluency and tasting confidence
- A sommelier or hospitality professional looking to strengthen production knowledge
- A serious home winemaker ready to move beyond intuition into repeatable methods
Because the program includes sensory and tasting activities, the best experience comes from learners who can source common wines and participate responsibly in any tasting exercises.
Project work in Cornell’s Winemaking Certificate is designed to help you practice how wine professionals think, plan, and troubleshoot. You will complete applied assignments that translate concepts into concrete outputs you can use as templates, decision aids, or starting points for real production and vineyard scenarios. Examples of projects learners have completed include:
- Developing a saignée-method Grenache rosé plan that uses benchmark blending trials with a small Viognier addition to lift aromatics while concentrating the remaining red wine
- Designing a steep slope to flatland vineyard buildout across three regions by tailoring ripping, liming, row orientation, spacing, and planting method to soil pH, hardpan depth, slope, and vigor potential
- Building a precision viticulture response to NDVI variability by diagnosing likely drivers with soil, water, and disease checks and then proposing zone-specific pruning, nutrition, and separate harvesting to improve uniformity and wine quality
- Mapping a 10-year Tawny Port workflow from short, high-extraction fermentation through fortification and long oxidative barrel aging, then blending multiple lots to achieve a consistent average-age house style
- Creating a Napa Cabernet Sauvignon climate adaptation plan that prioritizes water efficiency, heat and sunburn mitigation, and wildfire and smoke taint risk management while protecting ultra-premium fruit quality
Across the program, projects help you integrate sensory evaluation, production planning, vineyard operations, and modern risk management into a more confident professional toolkit.
Cornell’s Winemaking Certificate helps you translate wine science and vineyard fundamentals into practical judgment you can apply to production, evaluation, and quality decisions.
After completing the Winemaking Certificate, you will have the skills to:
- Gain a historical foundation for the grape-growing and winemaking industries
- Analyze wines with sensory perception
- Design wine production plans for table, fortified, and sparkling wines
- Recognize sensory active compounds in wine and how they can be manipulated through the winemaking process
- Identify basic wine-growing operations and how they achieve different viti- and vinicultural outcomes
- Recognize potential vineyard sites and devise a planting strategy
- Address current issues in viticulture
Learners often report that the program strengthens their long-term professional capability by giving them clearer frameworks for fermentation chemistry and for how compounds influence aroma, color, structure, and mouthfeel. They also cite more consistent tools for evaluating wine quality and describing what they smell and taste, greater confidence identifying common faults and understanding prevention or remediation options, and more informed thinking about vineyard operations and planning choices that affect the finished wine. Students highlight that the online format supports steady progress alongside work and that facilitator feedback helps them think more critically and improve the quality of their plans and analyses.
What truly sets eCornell apart is how our programs unlock genuine career transformation. Learners earn promotions to senior positions, enjoy meaningful salary growth, build valuable professional networks, and navigate successful career transitions.
Cornell’s Winemaking Certificate, which consists of 6 short courses, is designed to be completed in 3 months. Each course in this certificate runs for 2 weeks, with a typical time commitment of 3 to 5 hours per week on readings, videos, discussions, and project work.
Many of the learning activities are asynchronous, so you can complete them on your schedule, while optional live sessions add real-time interaction with your facilitator and peers. In practice, the schedule works well when you block a few consistent study windows each week and pace your tasting and project work around your own calendar and time zone.
Students in Cornell’s Winemaking Certificate consistently describe it as a rigorous yet approachable way to build real winemaking capability, with a strong balance of science, sensory skill building, and practical application they can use immediately in the vineyard, winery, or tasting room.
What students most often highlight includes:
- A deeper grasp of fermentation chemistry and how compounds shape aroma, color, structure, and mouthfeel
- Clear frameworks for balancing sugar, acidity, tannin, and overall wine stability and style
- Practical, hands-on learning through guided tastings, sensory exercises, and applied projects
- Confidence spotting common wine faults and understanding prevention and remediation strategies
- Tools to evaluate wine quality more consistently and describe what they smell and taste with greater precision
- Insight into grape growing and vineyard planning decisions that affect finished wine outcomes
- Coverage of multiple wine styles and production approaches, helping connect technique to the final glass
- Content that synthesizes key wine science concepts into an organized, usable roadmap for continued learning
- A flexible, self-paced online format that works well for busy professionals and working winemakers
- High-quality instruction and facilitator feedback that helps students think critically and improve their work
- A well-structured learning experience with engaging multimedia materials and a credential students are proud to share
Your work in Cornell’s Winemaking Certificate spans a broad set of wine styles so you can understand how process choices drive sensory outcomes.
You will learn how to build production plans for standard table wines, including the core differences in processing for white, red, and rosé styles. The program also covers fortified wine approaches, including how fortification and oxidative versus biological aging shape styles such as port and sherry. For sparkling wines, you explore multiple production pathways and the quality and cost trade-offs among methods such as traditional in-bottle fermentation, transfer approaches, tank fermentation, and other common techniques.
Throughout Cornell’s Winemaking Certificate, style differences are tied back to practical decisions around fermentation management, stabilization, oxygen exposure, and the balance of sweetness, acidity, alcohol, and phenolics.
Hands-on sensory practice is a core part of Cornell’s Winemaking Certificate, because learning to evaluate appearance, aroma, flavor, mouthfeel, and finish benefits from repeated, structured tasting.
You will practice a standard evaluation protocol and build a shared vocabulary using tools like aroma and mouthfeel references. Several activities ask you to compare wines or simple solutions to understand how sugar, acid, tannin, oxygen exposure, and other factors shift perception. You’ll also learn to recognize common faults and the sensory signals that help you diagnose what might be happening.
To participate fully in Cornell’s Winemaking Certificate, you should plan to purchase a small set of wines and a few basic materials for at-home exercises. For example, early sensory work includes purchasing five wines of global importance along with tartaric acid, and later activities use simple household items for controlled comparisons (such as apple juice for oxidation observation or carbonated beverages to feel the impact of CO2).
Learners who don’t drink alcoholic beverages or who follow dietary laws are provided with nonalcoholic options for the tasting exercises.
Modern vineyard and winery decisions increasingly require planning for climate volatility and using better data, not just tradition. Cornell’s Winemaking Certificate addresses these realities directly so you can think more clearly about risk and adaptation.
You will explore how climate change influences phenology and fruit composition, and what that can mean for alcohol, acidity, and style targets. You’ll also examine practical responses to challenges such as drought, wildfire exposure, smoke taint, and sunburn, including a mix of vineyard and winery mitigation options.
On the technology side, the program introduces digital agriculture tools used in precision viticulture. You will learn how tools like NDVI imagery, sensors, and GIS workflows can support zoning, targeted scouting, variable-rate decisions, and more efficient vineyard management planning.
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“I no longer just buy wines for the art label, but for what is actually said on the label. I can walk through the wine store with more confidence than before and now treat myself and others to some real gems.”
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Winemaking
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