Madeira became fortified over time. Fortification of the wine with brandy was introduced in the mid-18th century and today, the process continues only with neutral alcohol at 96% strength. Today, all wines have in between 17,5% and 21% alcohol strength.

How is Madeira Wine Produced? On arrival, all grapes are analyzed, classified, weighed and immediately processed to remove all the stalks, then crushed to remove the seeds and skins. The stalks are partially used as mulching material, and the seeds and skins are collected in crates and given to the farmers for agricultural feed. Different vinification methods are used, according to the different grape varieties.

Tinta Negra Wines used to produce dry and medium dry wines aren’t subject to maceration, whilst medium rich and rich wines use maceration and auto-vinification techniques.
All white varietals are subject to pelicular maceration in order to gain the maximum dry extract from the grapes.

Fermentation takes place in temperature-controlled stainless-steel tanks that are closely monitored and is stopped with the addition of natural grape spirit (96%) when the appropriate amount of natural grape sugar has been converted into natural alcohol.

The rich-style wines are fortified after approximately 24 hours whilst the drier style wines are left to ferment for 7 days before fortification.
Nowadays, two different ageing methods ae currently used: “estufagem” and “canteiro”.

The process known as "estufagem" was introduced by a local physician called Pantelião Fernandes in 1794 as a consequence of increasing market demand. It has since been used in the production of 3-year-old wines.
Today, once fortified, Blandy’s Madeira wines are transferred to large tanks and gently warmed up to temperatures of 45°C over a period of 4 months, and afterwards stabilized in in wooden vats for an additional period of two years.
After the gradual cooling of the wine in the 4th month, the wines are then left to age for 2 years in Brazilian satinwood vats. This process is only used with the Tinta Negra grape in the production of 3-year-old wines.

The word "canteiro" derives from the name of the traditional supporting beams on which the oak casks are placed. This unique process consists in the ageing of the wines in casks for a minimum period of 4 years stored under the rafters of warm attics, exposed to the natural warmth of the sun that gently heats the wine.
Wines produced in the "canteiro" system are stored in casks by the variety name and vintage year, and under the ancient rafters of the lodge. The casks are gently warmed by the naturalyl occurring heat of the sub-tropical climate, and the wines acquire a unique and concentrated character, resulting from the “angel share”, which is the name given to the reduction that the wines undergo during their ageing. The casks are never 100% full, which allows the wine to slowly oxidize and to transform the primary aromas into tertiary aromas or the classical “Madeira Bouquet” of spices, roasted nuts, dried fruits, and smoke, amongst many others.
After a few years on the highest and warmest level, the wines are moved down to successively lower floors and cooler levels. Years pass and eventually the wines reach the ground floor to finish ageing. This ancestral and totally natural process is called ‘canteiro’ and is used for all our premium wines.