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17 Cards in this Set
- Front
- Back
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The major components of wine include the following:
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Water
Alcohol Acid Sugar Phenolic Compounds |
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Wine is typically comprised of what percentage of water?
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80-90% water
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In what uncommon situations will a winemaker add water to the grapes?
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A winemaker will intentionally add water to dilute the grape juice or wine when potential alcohol, actual alcohol, or phenolic compounds are beyond desired levels.
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After water, the other major ingredient in wine is alcohol, which is usually what percentage of the volume?
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10-15% of the volume
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What type of alcohol is the primary result of alcoholic fermentation and the main alcohol component of wine?
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Ethyl alcohol or also referred to as ethanol.
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List the other types of alcohol that occur in small amounts in the wine
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Glycerol
Methyl Alcohol Methanol Fusel Oils (alternatively referred to as fusel alcohols) |
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___________ is a volatile compound, which means it evaporates easily. When it does, it carries the wine's aromas to the nose.
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Ethanol
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What is one element of the what makes up a wine's "weight" or "body"?
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Alcohol content. Wines with higher levels of alcohol tend to be heavier in weight than wines with lower levels of alcohol, all other things being equal.
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When a wine has "tears" or "legs" when a glass of wine is swirled, what does it mean?
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Refers to the level of alcohol in the wine. Higher levels of alcohol can create thick-appearing tears or legs in the glass.
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What percentage of a wine's volume is acid
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Between 0.5 and .75%
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What are the principal acids in wine?
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Tartaric Acid
Malic Acid Citric Acid Lactic Acid Acetic Acid Succinic Acid |
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Which acids are Grape acids?
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Tartaric Acid
Malic Acid Citric Acid |
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Which acids are Fermentation acids?
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Lactic Acid
Acetic Acid Succinic Acid |
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Which acid (out of the 6 main acids) is the most prevalent of the acids found in both grapes and wine?
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Tartaric Acid
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Which acid is the strongest in terms of pH?
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Tartaric Acid
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Which acid has the unique propensity to form solid crystals at low temperatures?
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Tartaric Acid. Once tartaric acid takes this form ("wine diamonds"), it will not redissolve into the liquid, and the wine will become noticeably LESS acidic.
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"Wine Diamonds" are considered a defect in most wines- True or False?
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False. "Wine Diamonds" are not considered a defect in most wines; however the formation of tartrates can be avoided or minimized through the winemaking process of cold stabilization
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