Fortified Flashcards
Name the three sub-regions for port in ascending order of quality.
Baixo Corgo, Cima Corgo and Douro Superior.
What are the name of the mountains that shield the port area from the Atlantic?
Serra do Marao
What is the climate of the port region?
Warm continental. Hazards are spring frosts and heavy downpours at flowering and harvest. Summer temperatures are high. Summer rainfall is low. The schist bedrock allows roots to access deep water reserves.
In port, what aspect is best? How are vines planted?
Some face north to get less sun. altitude makes a difference in temps. Traditionally planted on narrow terraces called socalcos supported by stone walls. No easy access and expensive. New terraces are called patamares. No walls and wide enough for tractors. Prone to erosion. On low slopes vinha ao alto is used. Vines are planted up and down the slopes and access by roads cutting across the slope from where machinery is operated by winches. Prone to erosion.
Generally describe the Douro varieties used in port.
Thick skinned, high tannins, black fruit, floral aromas.
Name the five grape varieties in premium port production.
Touriga Franca, Touriga Nacional, Tinta Barroca, Tinto Cao, Tina Roriz
At what abv during fermentation is port fortified?
5-9 abv
How long does port fermentation last before fortification?
24-48 hours
Why are normal extraction methods not used in port?
Because The fermentation is stopped at 5-9 abv, it only lasts 1-2 days, which is not enough time for normal extraction methods to get the needed levels of color and tannin expected of a port.
Name three extraction methods used in port and describe them.
- Foot treading - large teams tread the grapes for 3-4 hours in shallow granite troughs called lagares. When treading stop, the cap is punched down.
- Autovinifiers - automate extraction - as co2 increases during fermentation in a sealed vat, the pressure pushes juice through pipes which is used to flood the cap. Like pumping over but the skin contact is higher. One cycle every 15-20 min.
- Piston plungers and robotic lagares - imitate foot treading to push the cap down and then regularly punch down.
What abv is port usually after fortification?
19-22%
What is the spirit used to fortify port and what is its maximum abv?
Aguardente, max 77% abv
What is the avg percentage of spirit in a port?
20%
What is the avg percentage of spirit in a sherry?
3.5%
Where are ports matured?
Vila Nova de Gala