More than a human choice, the cork oak forest existence was a choice of nature. With an area of approximately 2.2 million hectares, the cork oak forest is one of the richest ecosystems in the World, being considered one of the 36 biodiversity hotspots. Cork oak forests are an ecosystem with a delicate balance, subsisting only in the Mediterranean basin, under the Atlantic influence, as is the Portugal example. Its importance is fundamental for the protection of endangered species, such as the Iberian Lynx and still functioning as a key element in the fight against local desertification.

Country Hec % Ton %
Portugal 736.775 34% 100.000 50%
Spain 574.248 27% 61.504 31%
Morroco 383.120 18% 11.686 6%
Algeria 230.000 11% 9.915 5%
Tunisia 85.771 4% 6.962 3%
France 65.228 3% 5.200 3%
Italy 64.800 3% 6.161 3%
Total 2.139.942 100% 201.428 100%

0,0 Million

hectares total forest area

0 Thousand

hectares in Portugal


located in alentejo and algarve

0 Thousand

tons annual average production of cork in the mediterranean basin

0 Average

numbers of trees by hectare

0 Years

average life of a cork oak tree

0 Meters

average height of an adult cork oak tree

0 kg average

quantity of cork extracted per tree

0 average

number harvests per oak

0 declared as National Tree of Portugal

by the Parliament of Portugal

Cork is a 100% natural plant tissue, formed by hexagonal shaped cells agglomeration. These, inside, contain a gas identical to air, being coated with suberin and lignin.
The life cycle of cork, as a raw material, begins with its extraction from the cork bark, a process known as stripping.
The cork harvesting is an ancient process done by specialists, the descortiçadores, where the cork bark is removed without harming the tree.

0 Years

for extraction of the first cork

0 Years

time required for each new harvesting

0 cm

minimum trim perimeter for extraction to occur

0,0 g

cork weight per cm3

0 Million

amount of cells per cm3


Cork harvesting is done manually with traditional tools, minimizing the environmental impact and improving tree’s health.
As proof our methods work, not only cork forests are flourishing and the total farming area with cork oaks is expanding every year. To this end, MASILVA has a specialized team that monitors forests throughout the year.
Cork is processed in Portugal at the MASILVA 3 facilities, in Alter do Chão, in the heart of the Alentejo forest, where it grows, minimizing transport and the respective carbon footprint. The water used in the facilities for the sterilization and vaporization of cork planks is recycled and filtered. One of MASILVA’s fundamental responsibilities is to actively promote responsible forestry practices in entire southern region of Portugal, where the districts of Alentejo and Algarve offer an almost perfect combination of climate and soil to develop the growth of this noble raw material.

0 Thousand SQM

raw material storage area

0 Thousand Tons

raw material purchased per year

0.0 Tons

of c02 retained per year

0.0 Cork Oak Trees

protected per year

0 Hectares

of forest protected per year

Ask for your GREEN CERTIFICATE and find out how much you are contributing to the protection of the forest by buying cork stoppers.