lesson 4 Flashcards

1
Q

what is the main agent of turning grape juice into wine?

A

saccharonmyces cerevisiae

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2
Q

what is the part of the grape with tannins?

A

seeds and skin

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3
Q

what does fermentation convert sugar into?

A

alcohol, CO2 and heat

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4
Q

vitis vinifera was first intentional turned into wine?

A

8500 - 5000 BC

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5
Q

what text has a quote about wine, oil and bread?

A

Psalm 104

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6
Q

as berries ripen?

A

sugars increase and acidity decreases

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7
Q

red wine making fermentation

A

with solids (maceration)

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8
Q

Maceration

A

is a process of soaking crushed grapes, seeds, and stems in a wine must to extract color and aroma compounds as well as tannins

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9
Q

what does fermentation with solids allow for

A

color from skins to dissolve into must

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10
Q

what temperature should fermentation be completed at for red wine making

A

at a higher temp (20 - 32 C) for a shorter time

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11
Q

when can maceration be interrupted for red wine making

A

at any time during/end of fermentation )(~2 wks)

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12
Q

the longer time maceration =

A

more intense flavor/tannins/color

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13
Q

what is done after interruption of maceration for redwine

A

press to separate wine from solids

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14
Q

what happens if the process for red winemaking is completed with white grapes?

A

orange wine

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15
Q

full red winemaking process

A

whole grape fermentation

crush dark-skinned grapes only

ferment whole grapes: seeds, skins, pulp, and juice

press to separate wine from grape solids

red wines taste stronger and more like grape peels

extracting color from grape skins requires hotter, faster and more turbulent fermentations

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16
Q

full white winemaking process

A

fermentation of juice only

crush grapes of any color

press to separate clear juice from grape solids

ferment grape juice only

white wine taste milder and more like grape juice

preserving fresh taste of grape juice require cooler, slower and more tranquil fermentations

17
Q

for white winemaking waht do you do before fermentation

A

crush grapes and separate the solids from the juices via pressing

18
Q

what is temperature for fermentation for white wine-making

A

usually at lower temps (12 - 22 C) for a longer time in refrigerated stainless steel tanks

19
Q

exposure to oxygen ________

A

is kept to a minimum

20
Q

must

A

express4ed juice of fruit/grapes before/during fermentation

21
Q

pomance

A

dry/pulpy residure of material from which a juice has been pressed/extracted

22
Q

when red-winemaking skin _______, seeds _______ so

A

top, bottom, so the skin forms a cap at top but to get benefits it needs to be in contact with must

23
Q

cap management techniques - red winemaking techniques

A

punching down and pumping over

24
Q

punching down

A

breaking the cap and pushing it into the liquids, often done by hand

25
Q

pumping over

A

some juice is taken from bottom and sprayed over cap

26
Q

who are the top wine producers

A

spain, france, italy

27
Q

absolute highest wine consumption

A

US, France, Italy

28
Q

highest wine consumption per capita

A

Portugal, France, Italy

29
Q

steps of wine tasting

A

sight, smell, taste, reflect

30
Q

acidity wine tasting

A

present in all wines, mouth waters, makes wine refreshing and vibrant

put in mouth and move tongue up and down; if on sides of the tongue = acidity

31
Q

tannins wine tasting

A

produce astringency and bitterness: soft/round/ripe or harsh/grippy

32
Q

sweetness wine tasting

A

the amount of sugar in wine - residual sugar, the vast majority of wines are dry

33
Q

fruit wine tasting

A

sometimes the intensity of fruit aromas can give impression of sugar when none - this is fruit

34
Q

body wine tasting

A

sensation of richness and weight; due to a combo of alc, tannins, sugar and flavor combos

35
Q

balance of wine tasting

A

hard with soft

36
Q

hard components

A

acidity and tannins (should also be balanced here)

37
Q

soft

A

alcohol, sugar, ‘fruit’