Chapter 2: Wine Faults Flashcards
Acetic Acid
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
b. bacteria
Pronounced odor of lees
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
c. yeast
Acetalydehyde
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
e. oxidation
Mercaptan
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
a. sulfur compound
Cork taint
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
d. mold
Ascensence
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
b. bacteria
Butyric Acid
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
b. bacteria
Browning
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
e. oxidation
Brettanomyces
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
c. yeast
Geranium
- Match with off-odors and wine faults that is most likely the source.
a. sulfur compounds
b. bacteria
c. yeast
d. mold
e. oxidation
b. bacteria
What compound is the root cause of cork taint?
2,4,6- Trichloranisole (TCA)
What specific terms can be used to describe the aroma of a “corked” wine?
Musty, moldy or dank basement
What substance can cause a wine to smell like rancid butter?
Butyric acid
What faulty wine aroma can be caused by incomplete malolactic fermentation?
Geranium
What is the term used to describe a wine that has a cooked or baked color?
Maderized
What wine fault is typically caused by high amounts of both acetic acid and ethyl acetate?
Ascensence or volatile acidity
What specific terms can be used to describe a wine with an excess of Brett?
Sweaty, horsy, band-air, or medicinal
What substance can cause a wine to smell like onions or garlic?
Mercaptan (ethyl mercaptan)
What aroma can be caused by an excess of ethyl acetate?
Nail polish remover or model airplane glue
What wine fault can be described as having the aroma of burnt matches?
Sulfur dioxide
What wine fault is often described as similar to rotten eggs?
Hydrogen sulfide
What off-odor is caused by acetic acid?
Vinegar
Which of the following wine odors can occur as a result of prolonged contact with dead yeast cells?
a. ethyl acetate
b. leesy
c. geranium
d. onions or garlic
b. leesy
Which of the following wine faults can occur as a result of sulfur compounds?
a. butyric acid
b. oxidation
c. lactic acid
d. mercaptan
d. mercaptan
Which of the following wine faults can occur as a result of an excess of Brettanomyces?
a. sweaty or horsy odor
b. citric or lemony aroma
c. rancid butter or spoiled cheese odor
d. vinegar odor
a. sweaty or horsy odor
Which of the following compounds is responsible for cork taint?
a. acetic acid
b. 2,4,6- trichloroanisole
c. butyric acid
d. hydrogen sulfide
b. 2,4,6- trichloroanisole
What aroma can be caused by an excess of ethyl acetate?
a. geranium
b. wet cardboard
c. vinegar
d. fingernail polish remover
d. fingernail polish remover
What faulty wine aroma can be caused by incomplete malolactic fermentation?
a. wet cardboard
b. oxidized
c. geranium
d. brett
c. geranium
TCA is noticeable at very _____ concentrations, with most people able to detect it at the level of ____
a. low, 2 to 7 parts per trillion
b. low, 100 to 120 parts per trillion
c. high, 2,000 to 5,000 parts per million
d. high, 10,000 to 20,000 parts per million
a. low, 2 to 7 parts per trillion
What wine fault can lead to the aroma of rotten eggs?
a. brettanomyces
b. hydrogen sulfide
c. ethyl acetate
d. mercaptan
b. hydrogen sulfide