Port Flashcards
Give a simple definition of Port wine.
Port is a fortified sweet wine from the Douro in Portugal;
Port can be made white, red, or rosé with local grape varieties of the Douro, the most important of which is Touriga Nacional.
What are the 3 subregions of Port?
From west to east:
Baixo Corgo: usually lighter-style wines
Cima Corgo: highest concentration of Port vineyards
Douro Superior: smaller production than Cima, usually high-quality, dry wines
What is the general climate of vineyards of Port ?
Warm continental climate
shielded from cooling rain bearing atlantic winds
Vineyards are hotter and dryer the more inland
What are the climatic hazards in porto vineyards?
frosts
high temperature in the summer and rainfall mostly in winter.
What is the main soil type in the Douro port vineyards ?
Schist
Schist experiences vertical fractures, making it somewhat easier for a vine’s roots to dig deep for nutrients and water reserves
The topography of the Douro region is more likely to be flat land or steep slopes?
Douro has steep slopes and many older vineyards are planted on terrasses.
Differences in temperature between the top and bottom of a slope due to change in altitude.
some vineyards are facing north to avoid full force of the sun.
In the Douro, what is the name of the traditional narrow terraces with retaining walls?
Socalcos
Even though this way of farming is expensive it is still widely used. Each terrace holds only one or two rows of vines and must be hand harvested.
What are Patamares?
Patamares are terraces in the Douro constructed without retaining walls to allow for tractors and other mechanization.
What is the term used for vineyards planted aligned with, or going vertically up, the slope?
Vinha ao Alto
Vineyards planted vertically are used on gentle pitches near the bottom of slopes.
not viable for the steepest slopes and is prone to erosion
Port wines are mostly vinified as single varietal wines or blended wines?
Blended
What are the 5 most important varieties of the Douro for the production of red Port?
Touriga Nacional
Touriga Franca
Tinto Cão
Tinta Roriz
Tinta Barroca
Post fermentation of Port ist stooped by fortification one the alcohol levels reach what level?
5-9%
Approximately how long does primary fermentation last in the production of red Port?
About one to two days (24 to 48 hours).
Explain foot treading in port production
traditional method of extraction
Large teams tread the graopes for 3-4 hours in granite troughs called Lagares
foot treading stop once fermentation begins
Cap is then regularly punched down to extract colour and tannin
Still used for premium wines
Explain autovinifiers method in port
- crushed grapes are put into sealed vats and the rising pressure of the CO2 given off by fermentaion pushes the juice up through pipes into a holding tank
- When pressure reaches the set level, valvle is relase and the wine in the holding tank floods down over the cap
- rest and start again at each 15-20 minutes
- sometimes include paddles to help with pre-fermentation extraction
In the production of Port, what are the three important ways to extract color and tannin prior to fermentation?
Foot Treading
Autovinifiers
Piston plungers and robotic lagares
What is a lagares ?
large, open vats or troughs, typically made of stone, in which wine grapes are crushed by foot