2. Sherry Flashcards
What is the name of the governing body that is responsible for setting regulations and controlling Sherry production?
Consejo Regulador
Describe the climate of Marco de Jerez
Hot Mediterranean climate with hot, dry summers and mild, relatively rainy winters
Which ocean influences Marco de Jerez?
Atlantic
What is the latitude and altitude of Marco de Jerez?
Low (36 degrees north) and Low (0-90m)
What is the name of the Atlantic ocean wind that effects Jerez? What are it’s effects?
‘Poniente’ - cool, humid influences.
What is the name of the North African wind that effects Jerez? What are it’s effects?
‘Levante’ - hot, dry influences.
What are the positive and negative effects of Jerez’ high number of cloud free days?
Lots of sunshine hours means fully ripe grapes is not an issue. But sunburn is a risk without sufficient shading.
What are the two names given to the sherry production area within Andalucia?
Zona de Produccion or Marco de Jerez
What are the two DOs within the Zona de Produccion?
- Jerez-Xeres-Sherry
2. Manzanilla - Sanlucar de Barremeda
In what one circumstance can grapes be grown outside the Zona de Produccion and still labelled DO Jerez-Xeres-Sherry?
PX grapes grown around Montilla (north of Malaga) but aged within the Zona de Crianza
What are the two parts that Zona de Produccion is split into?
- Jerez Superior (over 90%)
2. Jerez Zona
What is the name of the small, delimited areas within the Zona de Produccion, not currently legally defined for labelling purposes?
Pagos
What are the three soil types of Marco de Jerez?
- Albariza - limestone/silica/clay
- Barros - clay
- Arenos - sand
What are the three main positive effects of albariza soil?
- Water retention and gradual release through clay component
- Water retention through formation of crust on topsoil, reducing evaporation
- Light reflection to help ripening.
What is the effect of good water retention on yield?
Better water retention allows for higher density planting, meaning higher possible yield per hectare (when compared to other, similar climates in Spain)
What are two synonyms for Palomino?
Palomino Fino and Listan
What is the synonym for Moscatel?
Muscat of Alexandria
What is the percentage of Palomino planting in the 7000 hectares of Jerez?
99%
What are the key characteristics of Palomino? (5)
- Neutral
- High yielding
- Mid-late ripening
- Likes warm, sunny weather
- Loses acid quickly at ripeness
What soil is Moscatel generally grown on?
Arenas - sandy
What are the key characteristics of Moscatel? (3)
- Aromatic
- Late ripening
- Likes warm climate
What are the key characteristics of PX grape variety? (3)
- Neutral
- Thin-skinned
- High sugar content
What used to be the principal pruning method for Sherry? What is it called in the region?
Replacement cane pruning, known as “vara y pulgar”
Which pruning method is gradually becoming more prevalent in Marco de Jerez and why?
Cordon trained, spur pruned. Easier for mechanisation.
What are the maximum yields allowed for Sherry production?
80hL/hectare.
Ussualy yields are 60-70hL/hectare
What is “aserpia”?
A system of digging troughs across the rows to help stop water from simply flowing down the slope and accumulating at the bottom.
What diseases, pests and threats exist in Marco de Jerez? (3)
Few.
- Mildew in the Spring, combatted by VSP & fungicide when necessary
- European grapevine moth, combatted with pheromone traps
- Water stress, combatted by ‘aserpia’
What level potential alcohol, acidity and pH are Palomino grapes usually harvested?
12% potential alcohol
5g/L TA
3.3-3.5 pH
What is the harvest method for Sherry grapes?
60% machine harvest, at night or in the early morning when it’s cool to prevent oxidation.
What press cut is mostly used for biologically aged wines and why? What is it called in the region?
Free run and early, gentle press cuts.
Limits the phenolic compounds which can stop the growth of flor.
It is called “primera yera”
What press cut is most commonly used for Olorosso style sherries and why?
Later press cuts with more pressure and extraction.
Higher phenolic compound helps to inhibit the growth of flor.
What is the maximum juice yield permitted in sherry production?
70L/100kg
What are the three common methods for pre-fermentation clarification and why is this important for Palomino grapes?
- Centrifugation
- Flotation.
- Cold settling
It is important to remove albariza dust particles from the must.
How do dry sherry producers ensure a ferment reliably ferments to dryness? (2)
Cultured yeasts. Warm ferment (22-25C).
How is MLF prevented for Sherry and why?
Chilling the must.
The use of S02 can negatively affect the growth of flor yeast.
What is the “First Classification”?
A sample of each batch is sent for testing/tasting after primary fermentation to decide whether it will be used for biological or oxidative ageing.
What is the fortification level for biological and oxidatively aged sherries? Why?
Biological - 15-15.5% (flor can grow)
Oxidative - 17% (flor cannot survive)
What is the name for wines that are fortified but not yet added to a solera?
Sobretablas
What is the “Second Classification”?
Wines that have been stored as Sobretablas for a number of months are tested/tasted to review the flor development. Full, healthy flor growth will be added to Fino or Manzanilla soleras. Less well developed flor batches will be added to Amontillado or Palo Cortado soleras.
What are the three municipalities allowed for maturation of DO Jerez-Xeres-Sherry? What are they collectively known as?
What is the exception to this?
- Jerez de la Frontera
- El Puerto de Santa Maria
- Sanlucar de Barrameda
Collectively known as the Zona de Crianza
The exception is Sherry from Moscatel, which has additional areas of Zona de Crianza around the Chichlana de la Frontera and Chipiona