Port styles are basically divided between vintage and non-vintage. Vintage port comes from a single harvest, and only in the best years do the producers ‘declare’ a vintage. The wines are bottled after two years and should be matured in bottle for ten or 15 years before being opened. Single-quinta vintage ports are a variation on this theme: they come from the best estate owned by the producer, but are made in the second-best years. They are ready to drink at about ten years old. LBV, or Late-Bottled Vintage, is rather different. Yes, it’s wine from a single year, but bottled after four to six years. ‘Traditional’ unfiltered LBV is a lovely, perfumed drink that can be enjoyed as soon as you buy it, or kept.
Crusted is a non-vintage blend that is usually an excellent budget substitute for vintage port; vintage character is mostly undistinguished. Tawny is the most wonderful of the non-vintage styles. 10-Year-Old tawny is russet-coloured, sweet and fruity; 20-Year-Old is nuttier and smoother; and 40-Year-Old is very nutty, smooth and rare. Ruby is the simplest and youngest of ports, and at its best is bursting with young, peppery fruit. Reserve is a slightly older Ruby. White port should be dry and nutty but most is coarse and alcoholic.