Intro Sommelier Course - Day One Flashcards
Viticulture: What is viticulture?
This is the art — and science — of vine growing
Viticulture: What are some financial considerations for the location/geography of planting a vineyard or starting a winery?
Planting a vineyard or starting a winery costs a good deal of money regardless of location, yet costs vary dramatically from region to region. Prime real estate in the Napa Valley or Burgundy would provide a new enterprise with strong initial credibility, but also would prove to be extremely expensive. By contrast, establishing a vineyard and winery in a less famous region could make for a slower start in terms of reputation, but involve much lower land costs.
Viticulture: The majority of the world’s vineyards are planted:
Most grapes varieties thrive in temperate climates. Most vine growing occurs between the 30º and 50º latitudes in the Northern and Southern hemispheres. However, grapes can be grown in extreme climates above and below these latitudes lines can be accomplished.
Viticulture: What are the 4 specific climates important when considering viticultural areas?
Continental, maritime, Mediterranean, High Desert
Viticulture: What are diurnal shifts?
Factor affecting climate. The difference between average daytime high and nighttime low temperatures. This can affect the ripening of grapes and the balancing of acidity and sugar.
Viticulture: What are climate moderators that have a strong influence on climate by warming or cooling it?
Bodies of water and mountains
Viticulture: What is a rain shadow?
A dry area on one side of a mountain opposite the wind, rain, and generally poor weather. There are many important wine regions in the world that exist in rain shadows.
Viticulture: What are some of the important properties of various soil types?
Drainage of water, water retention, sun reflection
Viticulture: What are tannins?
Located in grape skins. Lend structure, but also astringency in red wines
Viticulture: Most quality grape varieties we see today are made from which vine species?
Vinis vinifera. Upwards of 10,000 varieties
Viticulture: What is green harvesting?
A crop thinning method of dropping or cutting unripe grape bunches off the vine before harvest to decrease yields and allow the vine to focus its energy and nutrients on fewer, higher quality bunches.
Viticulture: What is phylloxera?
This is a vine louse that destroyed a third of the world’s vines beginning in the late 1800s. It was one of the greatest threats to wine production in history.
Viticulture: What is terroir?
Terroir is a French concept that does not have a direct English translation. Terroir is the entire set of factors that influence the development of the vine’s fruit and the characteristics the fruit will show once vinified.
Viticulture: What is a term for looking at the climate’s “big picture” of an entire wine region?
Macroclimate
Viticulture: What is a term for looking at the climate of a particular vineyard?
Mesoclimate
Viticulture: What is a term for looking at the climate of single row vines or a specific vine?
Microclimate
Viticulture: Name 3 positive effects of wind in a vineyard.
Wind can cool a growing region (if originating from over cool ocean waters, for example) or lend warmth and drier air (if originating from a desert), helping prevent mold or rot.
Viticulture: Name 3 wine regions of the world that are affected by rain shadows.
Alsace, Rioja, Washington State
Vinification: What is vinification?
The process involves decisions and practices made in the winery by the winemaker that affect quality and style.
Vinification: What is fermentation?
This is a chemical reaction whereby sugar from ripe grape juice plus yeast either ambient in the air or inoculated by the winemaker yields (produces) alcohol and carbon dioxide (CO2), as well as flavors, aromas, and heat.
Vinification: What flavors are imparted by American oak barrels?
Often has bold, more intense flavors of vanilla, baking spices, dill, and coconut
Vinification: What flavors are imparted by French oak barrels?
Often subtler aromas of vanilla, toast, and spice
Vinification: What is malolactic fermentation?
Tart malic acid, which occurs naturally in grapes, are converted to softer-tasting lactic acid. “Malo” or “ML” is a process that occurs naturally in both red and white wines. No flavor is imparted to red wines, but ML can impart buttery or buttered popcorn flavors and a creamy texture to white wines.
Vinification: What is carbonic maceration?
Tanks filled with whole berries are blanketed under CO2 gas. Grapes begin to ferment from the inside (intracellular fermentation). Berries at the bottom of the tank are crushed and ferment normally. Unique aromas and flavors are produced. This technique is historically associated most closely with the Beaujolais region of Burgundy, France.
Vinification: What is lees contact?
A winemaking decision to leave white and sparkling wines in contact with the yeasts that produced the fermentation. Over time autolysis occurs. This is when yeast cells die and release flavor components into the wine, giving additional richness, creaminess, and texture. Often used in cool-climate growing regions for the purpose of deriving more expressive aromas and flavors from the grape varieties that are rather subtle in these respects.
Vinification: What are lees?
After fermentation, yeast cells expire and settle to the bottom of the tank or barrel. This is the term for that accumulated material.
Vinification: What is sur lie aging?
When wine is left in contact with the lees for an extended period of time
Vinification: What are the aromas/flavors associated with sur lie aging?
Bread dough, yeast, toast
Vinification: What is must?
Unfermented grape juice
Vinification: What is cold stabilization?
A process that causes tartrate crystals to precipitate out of the wine at a very low temperature (25ºF). Results in clarity in sight
Deductive Tasting Method: How is the color concentration of white wine affected?
Young white wines are light and bright, but deepen in color with age (straw > gold > amber > brown). Oxidizes by exposure to air in bottle and oxygen through barrel
Deductive Tasting Method: How is the color concentration of red wine affected?
Lighten in color as they age. Dull with tendency to brown. Purple > Ruby > Garnet
Deductive Tasting Method: What is trichloroanisole (TCA)?
This chemical compound makes the wine smell like wet, moldy cardboard or musty old newspaper.
Deductive Tasting Method: What causes trichloroanisole (TCA)?
It can be caused by corks, barrels, or an entire winery that has been tainted with this.
Deductive Tasting Method: What does tannin do in (red) wine?
Sensed as astringency or bitterness, tannin comes primarily from the skin and sometimes the seeds of the grape and is present in all red wines.
Deductive Tasting Method: What does acidity in wine do?
Creates mouth-watering sensation
Deductive Tasting Method: What tontributes to the deep purple color of wine and high extraction of color?
Grape variety with high pigmentation and staining or color extraction in tears
Deductive Tasting Method: What are the dominant elements in food and beverage pairing?
Structural elements (sweetness, tannin, acidity, alcohol, texture), flavor elements (fruit, earthiness, oak), and taste elements (sweet, sour, etc)
Deductive Tasting Method: How should food and beverage compare in intensity?
They must roughly match one another in intensity
Deductive Tasting Method: What makes tannins in wine feel more astringent/decrease palate’s perception of acidity?
Salt