California Flashcards
Name important climatic and geographic factors in California
Coasts have warm-Mediterranean climate
California Ocean Current and fogs are cooling factors
Coastal ranges shield inland where the climate is hot and dry
What is the main natural hazard for viticulture in California?
How do grape growers tackle with this issue?
Water shortages due to lack of rain during the ripening season.
Drip irrigation is widely practised.
What is the implication of scarce autumn rain for harvesting in CA?
The scarcity of autumn rain allow growers to leave the grapes on the vine long into the season.
This extra ‘hang time’ results in very ripe grapes with very concentrated flavours and very high sugar levels. More recently, there has been a greater appreciation of freshness, and many growers are now picking slightly earlier.
What is the most widely planted grape in California?
Chardonnay
Describe Chardonnay wine from the Central Valley
Inexpensive, high-volume wines from the Central Valley tend to be fruity with low to medium acidity and sometimes a toasty note from oak staves or chips.
Regions with high reputation for Chardonnay in Sonoma
Los Carneros
Russian River Valley
How does traditional high quality Chardonnay wines differ from styles of cooler regions in CA?
High-quality California Chardonnay had a reputation for being very full-bodied, high in alcohol and low in acidity, with obvious flavours of oak, hazelnut and butter underpinning the peach and banana fruit flavours.
Cooler regions such as Los Carneros and Russian River Valley make more restrained examples with less oak.
What is the most widely planted black grape in California?
Cabernet Sauvignon
Describe a typical premium California Cabernet Sauvignon wine
Full-bodied, with very concentrated ripe cassis flavours and prominent spice aromas from new oak barrels.
Name the classical region for Cabernet Sauvignon in California.
Napa Valley
Name the natural factors that make Napa a prominent region for Cabernet Sauvignon.
Cabernet Sauvignon vines are best suited for a sunny, warm climate.
Napa Valley is in a buffer zone between the Vaca Mountains to the east, which separate it from the northern part of hot Central Valley and the Mayacamas to the west, which keep at bay the cool ocean breezes of the coast.
Several cooling influences such as fogs and cool afternoon breezes from San Pablo Bay to the south, cool air through the Chalk Hill gap in the north and altitude help to moderate temperatures of the vineyards and allow a slower ripening while maintaining acidity.
Why are some vineyards located above the fog ling in Napa Valley? What is the impact on the wines?
Many of the vineyards on the valley sides lie above the fog layer, and are cooled by their altitude, rather than fog influence.
Sunshine hours are greater and west facing vineyards such as those of Howell Mountain AVA get full exposure to the hot afternoon sun, giving fuller-bodied wines with higher alcohol levels.
While both Bordeaux and Napa Valley are known for their Cabernet Sauvignon wines, they do it in quite different climates. Compare and explain different climatic characteristics that enable successful growing of Cabernet Sauvignon in these regions.
Napa Valley is warmer than Bordeaux. Both regions have moderating influence from the sea but for opposite reasons:
Bordeaux’s climate is moderated by warming influence of Gulf Stream.
Cool Pacific breezes and fog funnel into Napa Valley from the San Pablo Bay in the south and breaks in the mountains near Calistoga in the north, providing relief from high daytime temperatures.
Bordeaux has relatively low daytime temperatures and vineyards need heat retaining gravel soil to reliably ripen Cabernet Sauvignon.
How are natural risks differ in Bordeaux compared to Napa Valley?
Bordeaux is substantially more humid than Napa Valley with much greater rainfall during the growing season, leading to potential risks of rot disease, disruption in flowering and dilution of flavours at harvest. Variation in weather can drive large differences in wine quality from one vintage to another.
Napa has long, dry and warm growing season, mostly consistent every year. Ocassionally spring frosts can be a risk.
Compare wines from Cabernet Sauvignon grown on hillsides with those from valley floors of Napa.
On the hillsides, the wines are typically fuller in body, higher in alcohol with greater levels of tannin, but less richness on the palate compared to valley floors.
On the valley floor, Napa produces a Usually well rounded with more refined flavor profiles along with fine integrated tannins more elegant and supple style of wine, with more approachable tannins.
Explain why wines from Cabernet Sauvignon grown on hillsides generally become approachable later than those from valley floors of Napa.
Overall the red wines of the valley sides tend to have greater levels of tannin, while valley floor examples have rounder, finer integrated tannins.
Compare a classic red wine from Bordeaux and Napa Valley
In practice, Bordeaux reds are nearly always blends of Cabernet Sauvignon and Merlot.
What are the warmest and coolest AVAs of Napa Valley? What are the main grapes grown?
Rutherford (Cab Sauvs with most power and structure) Los Carneros (Pinot Noir and Chardonnay for still as well as traditional method sparkling wines)
Which Sonoma AVA has built a reputation for Cabernet Sauvignon?
Alexander Valley AVA, warmest in Sonoma.
Built a reputation for soft-textured, full-bodied Cabernet Sauvignons.
Grape varieties of Dry Creek Valley AVA
The hillsides above the fog layer are home to high quality old vine Zinfandels, whereas the valley floor vineyards are better suited to Sauvignon Blanc. Rhone varieties and Cabernet Sauvignon are also popular.