Wine Science
The Science of Winemaking: Chemistry, Biology, and Beyond
The chemistry, biology, and physics behind great wine.
Measuring Alcohol Content in Wine
Learn accurate methods for measuring alcohol content in homemade wine, from hydrometer calculations to ebulliometer use and refractometer corrections.
Wine Aroma Compounds: The Science of Smell in Wine
Discover the chemistry behind wine aromas. Learn about primary, secondary, and tertiary aroma compounds and how winemaking decisions shape a wine's aromatic profile.
The Chemistry of Wine Fermentation
Explore the chemistry behind wine fermentation, from glycolysis to ethanol production. Learn how yeast converts sugar into alcohol and CO2 in your wines.
Wine Color Chemistry: Anthocyanins, Browning, and Stability
Understand the chemistry behind wine color. Learn how anthocyanins create red wine color, how browning occurs, and what determines long-term color stability.
Enzyme Activity in Wine: Natural and Added Enzymes
Understand how enzymes work in winemaking. Learn about natural grape enzymes, yeast enzymes, and commercial enzyme additions for juice extraction, clarification, and aroma release.
Fermentation Kinetics: Understanding Yeast Growth Curves
Learn the science of fermentation kinetics in winemaking. Understand yeast growth phases, sugar consumption rates, and how to monitor and troubleshoot fermentation progress.
Wine Microbiology: Bacteria, Wild Yeast, and Spoilage Organisms
Explore the microbiology of wine, from beneficial lactic acid bacteria to spoilage organisms like Brettanomyces and Acetobacter. Learn to manage microbial populations in your wine.
Organic Acids in Wine: Tartaric, Malic, Citric, and Lactic
Explore the organic acids that shape wine flavor and stability. Learn about tartaric, malic, citric, lactic, and other acids, their chemistry, and how they affect winemaking.
Oxidation and Reduction in Wine: Redox Chemistry Explained
Master the redox chemistry of wine. Learn how oxidation and reduction reactions affect wine quality, aging, and common faults like browning and reduction.
Sugar Chemistry in Wine: Glucose, Fructose, and Residual Sugar
Understand the chemistry of sugars in winemaking. Learn about glucose and fructose metabolism, measuring sugar levels, and managing residual sugar in finished wines.
Sulfite Chemistry: Molecular SO2, Free SO2, and Bound SO2
Master the chemistry of sulfites in wine. Learn the differences between molecular SO2, free SO2, and bound SO2, and how pH affects sulfite effectiveness.
Tannin Chemistry: Polymerization, Extraction, and Evolution
Explore the chemistry of tannins in wine, from grape seed and skin extraction through polymerization during aging. Learn how tannin structure shapes mouthfeel and quality.
Titratable Acidity in Wine: Testing and Adjusting
Master titratable acidity testing and adjustment in winemaking. Learn TA measurement methods, ideal ranges, and how to balance acidity for better wines.
Understanding pH in Winemaking
Learn how pH affects wine quality, stability, and flavor. Discover how to measure, adjust, and manage pH levels throughout the winemaking process.
Volatile Compounds in Wine: Esters, Aldehydes, and Ketones
Explore the volatile compounds that create wine's complex aromas. Learn about esters, aldehydes, ketones, and other volatiles, their chemistry, and their sensory impact.
Wine Stability: Protein, Tartrate, and Microbial Stability Tests
Learn the science of wine stability testing. Understand protein stability, tartrate stability, and microbial stability, and how to perform common stability tests at home.
Yeast Biology for Winemakers: How Saccharomyces Works
Understand the biology of wine yeast, from cell structure to metabolism. Learn how Saccharomyces cerevisiae converts sugar into alcohol and shapes wine character.