The Impact of Vineyard Site on Pinot Noir Musts and Wines from California and Oregon


Book Description

Vineyard site influences the chemical composition of grapes and the overall characteristics of finished wine. The intricacies of how vineyard site impacts grape and wine composition and quality are of continual interest, and many studies have been performed which aim to develop better understanding of this phenomenon. This thesis explores this concept in a unique way, by examining characteristics of vineyard sites and the qualities of the resulting musts and wines from 15 vineyard sites in California and Oregon. Each of these sites is planted with Pinot noir clone 667, and 10 of 15 sites are grafted on 101-14 Mgt rootstock. All grapes were harvested and transported to the UC Davis teaching and research winery, where they were processed and fermented under controlled experimental conditions. Vineyard sites were categorized by their soil type, growing degree days, and precipitation. Growing degree days and precipitation were calculated and observed for three vintages by using nearby California Irrigation Management Information System (CIMIS) weather stations. Additionally, cluster sizes and grape berry sizes were measured and recorded to better understand site impact on cluster and grape morphology. Vineyards located in the same American Viticulture Area (AVA) sometimes share the same soil series. Grape musts were initially characterized by chemical analysis prior to fermentation, and multivariate analysis of the initial juice chemistry was performed. In 2016, regional clustering was more apparent based on initial juice chemistry than in 2017. However, in both years, general trends of similarity exist among vineyards based on their geography. Fermentations were monitored for grapes harvested from each vineyard site in 2017 and reveal different fermentation kinetics. Temperature profiles were controlled a consistent protocol by using jacketed fermentors with heating and cooling capabilities. No correlation was determined between the amount of yeast assimilable nitrogen (YAN) and the maximum rate of fermentation. Additionally, no trend was observed between fermentation behavior and AVA. Each vineyard site appeared to ferment uniquely, with the Santa Rita Hills vineyard site fermenting at the fastest rate. All vineyard sites finished fermenting to dryness. Finished wines from the 2015 vintage were observed through aging to assess how phenolic compounds change and develop in bottle. Wines were aged in screw cap enclosed bottle and analyzed at three sample points: 3 months post-fermentation, 8 months post-fermentation, and 20 months post-fermentation. Samples were analyzed by high-performance liquid chromatography (HPLC) coupled with a diode array detector (DAD). While individual vineyards displayed different initial amounts of each phenolic compound assessed, many shared similar patterns throughout aging. When all compounds at all sample points for all vineyards are assessed together, regional grouping by AVA are evident. To understand extraction of phenolic compounds into the must and fermenting grape juice, samples were taken and analyzed by UV-Vis for the 2017 vintage. Samples were taken during cold soak, fermentation, and post-press and analyzed at wavelengths of 280nm and 520nm. Measurement at 280nm gives an approximation for total phenolic compounds and measurement at 520nm give an approximation for anthocyanin content, though other materials in fermenting must and wine also absorb at 520nm. In general, absorbance values at both wavelengths continued to increase during fermentation. For some vineyard sites, a decrease in these values was observed at the end of fermentation and post-pressing, indicating a potential plateau in extraction.




The Impact of Vineyard Site and Wine Age on the Aroma Profile of Pinot Noir Wines


Book Description

Volatile compounds in wine originate from grape components, microbiome, yeast metabolism and autolysis and are modified during aging due to chemical transformations and interactions. Minimizing sources of variation such as the rootstocks and the scion clone, and having the winemaking done under controlled, reproducible conditions allows for a better investigation of site-specific influences on the volatile profile of the wines. Pinot noir wines made from grapes from 15 sites located in 8 American Viticultural Areas (AVAs) in California and Oregon and planted with the 667 clone and similar rootstocks were studied. Wines were analyzed by Headspace Solid Phase Microextraction Gas Chromatography Mass Spectrometry (HS-SPME-GC-MS) at three time points (3, 8 and 20 months post-fermentation) to determine the differences in volatiles composition among the sites and investigate possible changes during aging. In addition, two Descriptive Analysis (DA) sensory panels were conducted (at 8 and 20 months post-fermentation) to investigate the differences among wines and whether the chemical characteristics could correlate with human perception. Weather data was also collected from each site. Out of the 39 compounds analyzed by HS-SPME-GC-MS, an Analysis of Variance (ANOVA) indicated that 16 compounds differed significantly across sites (p




Pacific Pinot Noir


Book Description

Featuring more than two hundred in-depth winery profiles, this definitive guide is the best single source of information on world-renowned pinot noirs from California and Oregon. Drawing on his encyclopedic knowledge of a grape variety considered by many to produce the ultimate food wine, John Winthrop Haeger offers this expanded, updated companion volume to his award-winning North American Pinot Noir. Here, with three times the number of winery profiles, he focuses exclusively on what he calls the Pacific Pinot Zone, stretching from the mouth of the Columbia River in Oregon to Santa Barbara in California and extending up to thirty miles inland. An introductory essay provides an indispensable view of pinot noir in the United States—including the dramatic effect that the movie Sideways has had on its sales and production. Pacific Pinot Noir features: * Detailed descriptive tasting notes and selected vertical tastings * At-a-glance graphics conveying information on tasting rooms, prices, and production for each winery * Regional maps showing key viticultural areas * Contact information for each winery




So You Think You Know Pacific Coast Wines? (2019-2020 Edition)


Book Description

“So You Think You Know Pacific Coast Wines” is designed to simplify your understanding by identifying growing trends, grape descriptions, the histories and future direction of the California, Washington and Oregon wine industry. This book concisely profiles each state’s leading growing regions, rainfall statistics and prominent grapes based on the most recent available harvest data. The 2019-2020 edition is ideal for wine collectors, winemakers and anyone who appreciates a world class Pacific Coast grown vintage. The following facts are just ten from hundreds of little known essentials included in the book: 1. California is the top producing state, Washington second and Oregon fourth (behind New York) in American wine grape production. California harvested over 4.28 million tons and Washington 261 thousand tons during the 2018 harvest. Oregon harvested 91.3 thousand tons during the 2017 harvest. Washington’s harvest is only 6.1% and Oregon’s 2.13% of California’s overall production. Oregon’s production is 35% of Washington’s. 2. Cabernet Sauvignon is California’s second most popular and highest priced red wine grape. It is Washington’s most popular and fifth highest priced and Oregon’s fifth most popular and highest priced wine grape. The average Napa Valley grown grape is priced between two and sixteen times more than competing states and regions within California. Napa grown Cabernet Sauvignon traditionally sells out before picking even commences. 3. California harvested 4.28 million tons of wine grapes during the 2018 harvest surpassing 2013 as the largest historic harvest. 4. California has 3,670+, Washington 970+, and Oregon 725+ wineries. California has seventeen designated growing regions. Washington has fourteen and Oregon five. 5. With Washington’s red grape varietals at 153.4 thousand tons, the closest California equivalent is the Monterey and San Benito Counties growing region (149.8 thousand tons). 6. Pinot Noir is Oregon’s largest harvested grape accounting for 58.6% of the state’s wine grape production and fifth highest priced. It is California’s fourth most popular and Washington’s sixteenth most popular. 7. Oregon’s wine grape production (91.3 thousand tons in 2017) most closely compares with the Mendocino County growing region of California (81.9 thousand tons in 2018). 8. Chardonnay is California’s largest harvested grape accounting for 38% of the white wine grapes and 16.6% of the state’s overall yield. It is Washington’s second largest wine grape, most popular white wine grape. It is Oregon’s third largest produced. 9. California’s wines were considered the equal to European’s elite vintages in 1890. Following the phylloxera pest and Prohibition, the state would not regain their global reputation until the mid-1970s. Washington’s international reputation began during the 1990s and Oregon’s during the 1980s. 10. Real Estate valuation remains the most important financial consideration influencing the value of varietal grapes. Top-tiered Washington vineyards have commanded pricing between $75,000-$80,000 per acre. Large established vineyards have been documented to sell for $25,000-$30,000 and bare unplanted terrain often averages $10,000-$15,000 per acre. In Napa County, secondary vineyard lands begin at $90,000-$165,000 an acre. Prime vineyards range between $225,000-$300,000 and upwards per acre.




Terroir and Other Myths of Winegrowing


Book Description

"Matthews brings a scientist's skepticism and scrutiny to widely held ideas and beliefs about viticulture--often promulgated by people who have not tried to grow grapes for a living--and subjects them to critical examination: Is terroir primarily a marketing ploy that obscures our understanding of which environments really produce the best wine? Can grapevines that yield a high berry crop generate wines of high quality? What does it mean to have vines that are balanced or grapes that are fully mature? Do biodynamic practices violate biological principles? These and other questions will be addressed in a book that could alternatively be titled (in homage to a PUP bestseller) On Wine Bullshit"--Provided by publisher.




Rogue Valley Wine


Book Description

Winemaking in Oregon began more than 150 years ago when Peter Britt of Jacksonville brought grapevine cuttings from California to create his Valley View Vineyard. By 1890, the Southern Oregon State Board of Agriculture forecast a vineyard-dotted Rogue Valley to rival the castled Rhine, the classical vales of Italy and the sunny slopes of France. But Prohibition, which became law in Oregon four years before the rest of the country, killed the nascent industry. Not until the 1970s, when Americans discovered a passion for wine, was winegrowing and winemaking in Southern Oregons Rogue Valley reestablished. Pear orchards were converted to vineyards, and winemakingnot on a California scale, but rather in boutique wineries tucked away along scenic country roadsbegan anew and thrived.




So You Think You Know Pacific Coast Wines? 2021-2022


Book Description

This edition is designed to simplify your understanding by identifying growing trends, grape descriptions, the histories and future direction of the California, Washington and Oregon wine industry. It concisely profiles each state's leading growing regions, rainfall statistics and prominent grapes based on the most recent available harvest data. The 2021-2022 edition is ideal for wine collectors, winemakers and anyone who appreciates a world class Pacific Coast grown vintage. The following facts are just ten from hundreds of little known essentials included in the book: 1. California is the top producing state, Washington second and Oregon fourth (behind New York) in American wine grape production. California harvested over 3.54 million tons and Washington 178.5 thousand tons during the 2020 harvest. Oregon harvested 105.6 thousand tons during the 2019 harvest. Washington's harvest is only 5% and Oregon's 3% of California's overall production. Oregon's production is 59% of Washington's. 2. Cabernet Sauvignon is California's second most popular and highest priced red wine grape. It is Washington's most popular and fifth highest priced and Oregon's fifth most popular grape. The average Napa Valley grown grape is priced between two and twelve times more than competing states and regions within California. 3. California harvested 3.54 million tons of wine grapes during the 2020 harvest, a 9.2% reduction from the 2019 harvest, the second consecutive year of decreased production. 4. California has 4,610+, Washington 1000+, and Oregon 790+ wineries.. California has seventeen designated growing regions. Washington has fourteen and Oregon five. 5. The wildfires that raged throughout the Napa and Sonoma Valleys reduced the harvest in those regions 37.9% and 35.6%. The devastating fires in early October 2017 that raged through Napa and Sonoma Counties probably had no effect on production figures. Rather, overproduction from the previous two-year's harvests have created a supply glut of unsold inventory. The difference with the 2020 fires is that they lasted throughout the summer months. The Glass Fire began on September 27th, at the height of the picking season. 6. The smoke taint on the harvested grapes is not reflected in the production statistics. Many of the grapes were harvest but not crushed. Many industry sources have considered the 2020 harvest a lost vintage for Napa and Sonoma as much of the juice will be de-classified or not bottled. Smoke taint may not become evident until after two years of tank storage. 7. Pinot Noir is Oregon's largest harvested grape accounting for 57.8% of the state's wine grape production and fifth highest priced. It is California's sixth most popular. 8. Oregon's production most closely compares with the Napa Valley growing region of California (99.3 thousand tons in 2020). 9. Chardonnay is California's largest harvested grape accounting for 33.9% of the white wine grapes and 15.8% of the state's overall yield. It is Washington's second largest wine grape, most popular white wine grape. It is Oregon's third largest produced. 10. California's wines were considered the equal to European's elite vintages in 1890. Following the phylloxera pest and Prohibition, the state would not regain their global reputation until the mid-1970s. Washington's international reputation began during the 1990s and Oregon's during the 1980s. 11. Real Estate valuation remains the most important financial consideration influencing the value of varietal grapes. Top-tiered Washington vineyards have commanded pricing between $75,000-$80,000 per acre. Large established vineyards have been documented to sell for $25,000-$30,000 and bare unplanted terrain often averages $10,000-$15,000 per acre. In Napa County, secondary vineyard lands begin at $90,000-$165,000 an acre. Prime vineyards range between $225,000-$300,000 and upwards per acre.




North American Pinot Noir


Book Description

Pinot noir, the famously elegant, sexy, and capricious red grape of Burgundy, is finally producing impressive wines in North America. Credit talented winemakers, enthusiastic restaurateurs, and consumers in search of alternatives to cabernet and zinfandel. Considered perhaps the ultimate food wine, pinot noir has an allure based on its special combination of aromas, flavors, and mouthfeel; on its legendary capacity to reflect the terroir where it is grown; and on its reputation for being hard to grow and make. This is the definitive work on pinot noir in North America. A comprehensive reference for winemakers and aficionados as well as a sourcebook for casual enthusiasts, it includes extensive historical and viticultural background on pinot noir in the New World and profiles of six dozen prominent producers in California, Oregon, British Columbia, and New York. John Winthrop Haeger, known for his perceptive wine writing for more than fifteen years, gives contextual and comparative information about pinot noir in Burgundy and then tells the story of wine producers' early failures, frustrations, and breakthroughs in North America. He discusses plant genetics and clones, identifies the essential conditions for really good pinot, tells where the best wines are grown and made, and analyzes the factors that determine wine styles and signatures. In the second part of the book, he presents detailed producer profiles with accessibly written tasting notes on recent and mature vintages. A final section covers glassware, vintages, wine and food pairings, and other matters of interest to consumers. Maps prepared especially for this book cover all the major pinot-producing regions in North America.




So You Think You Know Pacific Coast Wines? (2020-2021)


Book Description

"So You Think You Know Pacific Coast Wines" is designed to simplify your understanding by identifying growing trends, grape descriptions, the histories and future direction of the California, Washington and Oregon wine industry. This book concisely profiles each state's leading growing regions, rainfall statistics and prominent grapes based on the most recent available harvest data.The 2020-2021 edition is ideal for wine collectors, winemakers and anyone who appreciates a world class Pacific Coast grown vintage. The following facts are just ten from hundreds of little known essentials included in the book:1. California is the top producing state, Washington second and Oregon fourth (behind New York) in American wine grape production. California harvested over 3.9 million tons and Washington 201 thousand tons during the 2019 harvest. Oregon harvested 101 thousand tons during the 2018 harvest. Washington's harvest is only 5.2% and Oregon's 2.6% of California's overall production. Oregon's production is 50% of Washington's.2. Cabernet Sauvignon is California's second most popular and highest priced red wine grape. It is Washington's most popular and fifth highest priced and Oregon's fifth most popular grape. The average Napa Valley grown grape is priced between two and sixteen times more than competing states and regions within California. 3. California harvested 3.9 million tons of wine grapes during the 2019 harvest, a 9.4% reduction from the 2018 largest historic harvest. 4. California has 4,610+, Washington 1000+, and Oregon 790+ wineries.. California has seventeen designated growing regions. Washington has fourteen and Oregon five.5. Washington's red grape varietals harvested 121 thousand tons in 2019. The closest California equivalent was the Monterey and San Benito Counties growing region (122.3 thousand tons).6. Pinot Noir is Oregon's largest harvested grape accounting for 58.8% of the state's wine grape production and fifth highest priced. It is California's fifth most popular.7. Oregon's production most closely compares with the Napa Valley growing region of California (159.7 thousand tons in 2019).8. Chardonnay is California's largest harvested grape accounting for 36% of the white wine grapes and 16.3% of the state's overall yield. It is Washington's second largest wine grape, most popular white wine grape. It is Oregon's third largest produced.9. California's wines were considered the equal to European's elite vintages in 1890. Following the phylloxera pest and Prohibition, the state would not regain their global reputation until the mid-1970s. Washington's international reputation began during the 1990s and Oregon's during the 1980s.10. Real Estate valuation remains the most important financial consideration influencing the value of varietal grapes. Top-tiered Washington vineyards have commanded pricing between $75,000-$80,000 per acre. Large established vineyards have been documented to sell for $25,000-$30,000 and bare unplanted terrain often averages $10,000-$15,000 per acre. In Napa County, secondary vineyard lands begin at $90,000-$165,000 an acre. Prime vineyards range between $225,000-$300,000 and upwards per acre.