A precise and comprehensive description of the problems encountered at times by all winemakers and wine judges, Wine Faults covers the differences between flaws and faults, how flavors develop, how taste works, and how it differs from smell in the evaluation of wine. From there it tackles the increasing problems resulting from high alcohol wines as well as volatile acidity found in high pH wines common in some warm grape-growing regions. It also deals with the vegetal qualities of cool viticultural regions usually caused by methoxypyrazines and the occasional lady beetle. Every microbial infection found in today's wineries is fully described and arrayed in full color slides. Dense as the material may seem, the book is written in a manner that the layperson, or even the quality control professional who forgot that he ever took organic chemistry, can understand.

A precise and comprehensive description of the problems encountered at times by all winemakers and wine judges, Wine Faults covers the differences between flaws and faults, how flavors develop, how taste works, and how it differs from smell in the evaluation of wine. From there it tackles the increasing problems resulting from high alcohol wines as well as volatile acidity found in high pH wines common in some warm grape-growing regions. It also deals with the vegetal qualities of cool viticultural regions usually caused by methoxypyrazines and the occasional lady beetle. Every microbial infection found in today's wineries is fully described and arrayed in full color slides. Dense as the material may seem, the book is written in a manner that the layperson, or even the quality control professional who forgot that he ever took organic chemistry, can understand.

2022 Winner of the OIV Award in the Oenology category An essential guide to the faults and flaws that can affect wine Written by the award-winning wine expert, Keith Grainger, this book provides a detailed examination and explanation of the causes and impact of the faults, flaws and taints that may affect wine. Each fault is discussed using the following criteria: what it is; how it can be detected by sensory or laboratory analysis; what the cause is; how it might be prevented; whether an affected wine is treatable, and if so, how; and the science applicable to the fault. The incidences of faulty wines reaching the consumer are greater than would be regarded as acceptable in most other industries. It is claimed that occurrences are less common today than in recent recorded history, and it is true that the frequency of some faults and taints being encountered in bottle has declined in the last decade or two. However, incidences of certain faults and taints have increased, and issues that were once unheard of now affect many wines offered for sale. These include ‘reduced’ aromas, premature oxidation, atypical ageing and, very much on the rise, smoke taint. This book will prove invaluable to winemakers, wine technologists and quality control professionals. Wine critics, writers, educators and sommeliers will also find the topics highly relevant. The wine-loving consumer, including wine collectors will also find the book a great resource and the basis for discussion at tastings with like-minded associates. Reviews I read this book avidly from cover to cover. I’ll dip into it for future reference as required, which is how many will employ it. Meanwhile, I learned a great deal, and it now influences how I think about wine evaluation. I commend this excellent new book to you. Consider it an investment. Paul Howard, Wine Alchemy

Understanding Wine Chemistry Understand the reactions behind the world’s most alluring beverages The immense variety of wines on the market is the product of multiple chemical processes – whether acting on components arising in the vineyard, during fermentation, or throughout storage. Winemaking decisions alter the chemistry of finished wines, affecting the flavor, color, stability, and other aspects of the final product. Knowledge of these chemical and biochemical processes is integral to the art and science of winemaking. Understanding Wine Chemistry has served as the definitive introduction to the chemical components of wine, their properties, and their reaction mechanisms. It equips the knowledgeable reader to interpret and predict the outcomes of physicochemical reactions involved with winemaking processes. Now updated to reflect recent research findings, most notably in relation to wine redox chemistry, along with new Special Topics chapters on emerging areas, it continues to set the standard in the subject. Readers of the second edition of Understanding Wine Chemistry will also find: Case studies throughout showing chemistry at work in creating different wine styles and avoiding common adverse chemical and sensory outcomes Detailed treatment of novel subjects like non-alcoholic wines, non-glass alternatives to wine packaging, synthetic wines, and more An authorial team with decades of combined experience in wine chemistry research and education Understanding Wine Chemistry is ideal for college and university students, winemakers at any stage in their practice, professionals in related fields such as suppliers or sommeliers, and chemists with an interest in wine.

Attempting to export wine to the U.S. has long been fraught with difficulty, especially for the smaller producers. The U.S. wine industry, complicated by confusing regulations and intense internal brand competition, is also the land of opportunity and home to an adventurous and egalitarian wine consuming population. But without an understanding of how to effectively enter this complex market, the exporter often founders and retreats in frustration. This book provides a guide to approaching and attracting an importer, differentiating terms and regulations which must be understood to prosper, and avenues to achieving and sustaining attainable sales and distribution goals.

Following up on his bestselling Winery Technology and Operations, physical chemist and winemaker Yair Margalit comes out with the successive, Concepts in Wine Technology, fully updated and revised to meet the advances of modern winemaking. Among the extended topics are fermentation, skin contact, acid balance, phenolics, bottling, the use of oak and quality control. He begins in the vineyard discussing proper maturation, soil and climate, bunch health, vineyard disease states, and grape varieties. Next he tackles the preharvest with a careful look at vineyard management and preparing the winery for harvest. Dr. Margalit then outlines the entire process of harvesting, from destemming, crushing, and skin contact as it applies to both red and white grapes to pressing, must correction, and temperature control. Fermentation is examined fully and includes a lengthy look at the factors affecting malo-lactic fermentation and its pros and cons. There is a chapter on cellar operations that deals with racking, stabilization, fining, filtration, blending, and maintaining winery hardware, followed by sections on barreling and bottling. The final chapter pulls together the more general aspects of wine technology, covering sulphur-dioxides, different forms of wine spoilage and ways to ward them off, legal regulations and, one of the most important and enigmatic compounds in wine, phenolics.

Following up on his bestselling Winery Technology and Operations, physical chemist and winemaker Yair Margalit comes out with the successive, Concepts in Wine Technology, fully updated and revised to meet the advances of modern winemaking. Among the extended topics are fermentation, skin contact, acid balance, phenolics, bottling, the use of oak and quality control. He begins in the vineyard discussing proper maturation, soil and climate, bunch health, vineyard disease states, and grape varieties. Next he tackles the preharvest with a careful look at vineyard management and preparing the winery for harvest. Dr. Margalit then outlines the entire process of harvesting, from destemming, crushing, and skin contact as it applies to both red and white grapes to pressing, must correction, and temperature control. Fermentation is examined fully and includes a lengthy look at the factors affecting malo-lactic fermentation and its pros and cons. There is a chapter on cellar operations that deals with racking, stabilization, fining, filtration, blending, and maintaining winery hardware, followed by sections on barreling and bottling. The final chapter pulls together the more general aspects of wine technology, covering sulphur-dioxides, different forms of wine spoilage and ways to ward them off, legal regulations and, one of the most important and enigmatic compounds in wine, phenolics.