Rabelos, a type of boat traditionally used to transport barrels of Port wine down the Douro River for storage and aging in caves at Vila Nova de Gaia near Porto.
Rabelos, a type of boat traditionally used to transport barrels of Port wine down the Douro River for storage and aging in caves at Vila Nova de Gaia near Porto.

Ruby port is the cheapest and most extensively produced type of port. After fermentation it is stored in tanks made of concrete or stainless steel to prevent oxidative aging, and preserve its rich claret colour. The wine is usually blended to match the style of the brand to which it is to be sold.

The wine is fined and cold filtered prior to bottling, and does not generally improve with age. It is aged for about 3 to 5 years from wines of two or three different vintages.