Errors 12/28 Flashcards

1
Q

Sparkling Wine Temperature

A

6-10 (43-50)

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2
Q

SB Regions

A

cool + moderate on poor soil

warm and hot

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3
Q

Riesling Regions

A

Cool

Late Harvest from Cool and warm

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4
Q

Viognier: Fine Areas

A

South France, California, Australia

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5
Q

Muscat Ottonel

A

attractively perfumed dry whites in Alsace and Cental Europe

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6
Q

Cabernet Sauvignon Temperatures

A

Moderate: fresh Black currant
Warm + hot: black cherry, black currant jam

cooler: green capsicum, cedarwood, mint, more pronounced as age
warmer: black cherry and olive

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7
Q

Syrah: Where becoming important

A

South Africa, Hawkes Bay, Washington, Chile

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8
Q

Grenache Areas

A

Spain (Navarra, Rioja, Priorat)
France (Souther Rhone, the Midi)
California
Australia (especially McLaren Vale)

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9
Q

Main Factor Determining Which Varieties Ripen

A

Temperature More Than Sunlight

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10
Q

Black Varieties Temperature

A

Require moderate to war, to fully ripen tannin, color, flavor

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11
Q

Diurnal Range: Cool and Warm Nights

A

Warm Nights: Accelerate Ripening, especially sugar

Cool Nights: Help rest and extend growing season; help slow loss volatile aromas

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12
Q

Temperature Hazards: Mild Winter

A

Can prevent dormancy
Extreme cases: fall out of annual cycle; more than 1 per year
large population of insects and pests survive

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13
Q

Temperature Hazards: High Summer Temperatures

A

Accelerate grape ripening, change composition and style

Insufficient h2o can stop ripening, shed leaves, die in extreme cases

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14
Q

Sunlight Hazards

A

Excessively shaded vines less fruitful
Shaded at greater risk of coulure
Those that develop may struggle to ripen

Exceptionally Cloudy: Stop Fullen ripen, low alcohol, unripe tannin and flavor; decreased crop next year

Exceptionally sunny: sunburn

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15
Q

Water Hazards: Too Much Rainfall During Growing Season

A

Excessive vegetative growth; divert glucose from grapes; excessive shading

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16
Q

Continental Climate: Cool

A

Spring Frost
Affect flowering, fruitset, and ripening
Best suited to varieties that bud late and ripen early

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17
Q

Continental Warm

A

Ribera del Duero

Mendoza

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18
Q

Mediterranean Climate Areas

A

Coastal Cali, Chile, SE Australia, Cape Winelands

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19
Q

Maximizing Effectiveness of Available Light

A

Canopy Management: Training shoots and leaf stripping.

Curtain like canopy vs bush

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20
Q

Nematodes

A

Viruses

Decrease yields, susceptibility to nutrient and water stress

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21
Q

Birds and Mammals

A

Can cause rot in grapes

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22
Q

Insects and Arachnids

A

Damage plants limit photosynthesis
Damage fruit, increase rot and bacteria
Too much can taint

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23
Q

Downey Mildew

A

Leaf damage decreases ripeness

Damage to fruit decreases yield

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24
Q

Pierce’s Disease Prevention

A

Cordon Sanitaire

Interrupting lifecycle

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25
Eutypa Dieback
Affect permanent wood
26
Grape Processing
Add SO2 if not in vineyard | Individually checked on sorting table if top quality wine
27
Tannin Addition
Oak Staves, tannin powder, stems, bleeding
28
Fermentation starting temperature
Not less than 5C
29
Controlling MLF
Encourage: heat, no SO2 Discourage: SO2, filtering, cool temp
30
Red Wine Making Diagram
See book
31
Unripe and Rot Effects
Unripe: unpleasant and herbaceous aromas Rot: Taints taste, decreases color
32
Thermo-vinification
Unless careful fresh fruit decreased and remaining flavors muddled
33
Oak Staves During Red Fermentation
Add Tannin, flavor, stabilize color
34
Pumping Over: Effects
Help yeast grow | If not enough, stinky reductive aromas
35
Low tannin Red
Draw off skin, continue to ferment
36
Carbonic Maceration Post Burst
Press, continue fermentation with yeasts. Extracts color but not tannin.
37
Carbonic Maceration Variations
Destemmed but not crushed before fermentation. Element of carbonic maceration at same time as fermentation; Traditional in Rioja, common in spain.
38
Carbonic Maceration goals
less tannic, fruitier, well colored
39
Rose Wine Methods
Drawing Off, Bleeding, Direct Pressing, Blending
40
Direct Pressing
Crushed and Pressed same as white, extract little color; careful not to extract too much tannin, most delicately colored roses
41
Blending Rose
Not permitted in EU outside of Champagne | Some inexpensive new world
42
White Wine Skin Contact
Aromatic varietals increase flavor | Most free run drawn off then press remaining mass
43
Aromatic White Fermentation
Can last several months; usually just few weeks
44
White Fermentation Temperature Barrel vs. Inert
Small barrels usually small enough to dissipate heat and housed in cool cellars; but still at higher end of range
45
White Wine Making Diagram
Diagram
46
Sweet Wine Making Choices
Interrupting fermentation, Concentrating Sugars, Adding Sweetners
47
Ways to Interrupt Fermentation Sweet
Fortification: kill yeasts, alter structure and balance Filtration: SO2 or chill; vital no yeast contact after
48
Süssreserve
Countries like Germany make medium sweet wines. Sterile product; Filtered before fermentation or dosed with SO2 Added to dry wines when ready to bottle.
49
RCGM
Often for light sweetness in high volume NW brands | Pure sugar solution extracted from grape juice.
50
Passerillage
Dry, warm conditions otherwise rot. Wines made every year have a % of passerillage Overripe (dried, tropical), richly textured
51
Drying after Picking
PX, Passito Dry and warm; remove rotten as can spread. Raisin quality
52
Freezing Grapes on Vine
Very pure varietal character
53
Constituents of Wine
water, alcohol, color, acid, flavor, tannin (some wine) Determine clarity, stability, and ability to benefit from maturation Most abundant: water and ethanol, mixed with other alcohols, and other components dissolved or suspended in solution
54
Suspended Particles: Large
Dead yeast and grape fragments; Make wine cloudy Gross lees and fine lees
55
Colloids
So small so not cloudy and gravity doesn't make them fall out Contribute to texture and flavor Tannin and color=most important Amino acids and proteins (smallest fragments of yeast and grape cells); present prior to maturation but usually removed later
56
Aging Requirements
Sufficient tannin, acidity, alcohol, and fruit extracts that yield interesting flavors
57
Primary Fruit
Bottle after few months from inert vessels. Inexpensive reds and white Premium NZ SB rarely benefit from oak or SO2; store in vessels similar to cali white zin
58
Maturations Changes
Add components like tannin and toasty oak from new oak Slow, gentle oxidation, yield complexity and character; help stabilize and soften tannin Some components may react; change wine; some colloids and solutes can create particles that fall out (can lose tanning and acid like this)
59
Lees
Flavor and textural roundness Likely by hand if barrel fermented; Mechanical in stainless
60
Blending
Chard complex fruit and subtle oak: several locations range of ripeness ferment seperately: new barrel (maximum oak flavor and integration), old barrel (oxidative without much oak), inert vessels Different types of oak and toasting levels Different batches with different yeasts Some MLF blocked Blend in component from older year )developed depth) or from newly-fermented, unmatured (add freshness)
61
Benefit of Blending Choices
Without can't separate best or create different wines from similar base Can isolate problem in one parcel not affect larger volume Consistent style and sufficient quantity to meet demand
62
Clarification
Remove large sediment (dead yeast and grape skins) | Colloids that may create haze or sediment once bottled.
63
Sedimentation
After fermentation, pump off gross lees (racking) Repeated racking during maturation can improve clarity Can accelerate with centrifuge but risk harmful O2 dissolve.
64
Fining
Encourage smallest non-colloids to clump; also to remove colloids that may create haze or sediment after bottling; Can be used to alter flavor and character Colloids electrostatic (tannin - protein +)
65
Fining to alter taste
Against oxidative taint Classified growth Bordeaux remove astringent tannin without taking away desirable flavor components with egg whites
66
Types of depth filters
Kieselguhr | Cellulose fiber sheets
67
Filtering
Rapidly remove gross lees; usually filter before bottle to remove small suspended particles Some believe alter character especially texture
68
Maturation Diagram
See Diagram
69
Tartrate Stabilization
hill below freezing for short period; accelerate with potassium bitartrate and remove with filter. Must fine first as some unstable colloids prevent crystal formation
70
Microbiological Stability
yeast, acetic acid bacteria, lactic acid bacteria can spol if fermentation after packaging Fortified only one not at risk.
71
Low Risk Microbiological
fermented to dryness, undergone MLF, high acid, minimum O2 contact; alcohol, acid, and lack of nutrients struggle to survive
72
High Risk Microbioloigcal
No MLF as well as low to moderate alcohol, low acid, little residual
73
Cold Bottling
Asceptic or Sterile Bottling Surface filter; then equipment that's been sterilized; all quality levels, and packaging types
74
Hot Bottling
Pasteurizing; heat wine; suitable only for inexpensive; damage flavor
75
Oxygen Stability
Excess dissolved or enter through packaging SO2, minimize exposure Anaerobic packaging and bottling after flushing with n2 or Co2
76
Closures: General
Must allow for maturation if intended Wines evolve with inert, but not clear how it differs Best may vary with wine; when intended for consumption, consumer preference
77
Cork Closure
Winemaker knows how mature, consumer prefers | Small amount of O2, but imperfections may allow travel between cork and neck, desirability and role unknown.
78
Synthetic Corks
Popular for wines within a year; don't protect against o2 well, can harm flavors
79
Screwcaps
``` White producers in NZ and Aus champion Don't taint, impermeable. Preserve fruit longer than cork Debate on aging Some permit some o2 transfer Acceptance v aries but increasing ```
80
Bottle Sickness
not smell and taste as should, usually less than amount of time in supply chain