The Collio is a territory of great white wines, wines of stone and wind, elegant and structured, with an incredible potential of aging. Oslavia is part of the Collio and completes it, but it has its autonomy, its history, its winemaking philosophy.

Collio and Oslavia

If the Collio is the home of white wines, Oslavia is the cradle of macerated wines: authentic and tenacious wines, where the fermentation in contact with the skins creates new sensations and shifts the common boundaries.
Oslavia is a unique terroir with a combination of characteristics found nowhere else in the world.
A unique microcosm in the heart of the Collio, nestled between the peaks of the Julian Alps and the Adriatic Sea, characterized by temperature differentials and wind. The composition of the soil, the “ponca”, leaves its imprint, an unmistakable territorial DNA.
The vineyards are located at an average height of 180-200 meters: they therefore enjoy perfect exposure to the sun on well-drained soil, and benefit from the constant ventilation of the Bora blowing from the northeast.
This helps avoid the formation of mold by ensuring air circulation around the bunches and protecting every vine.
The deep knowledge of our historic vineyards, which we have been cultivating for generations, allows us to interpret our territory in an original and unique way.

The ``Ponca`` soil

The effect of the “ponca” soil is apparent in our wines, whose common traits are minerality, structure and elegance.
The “ponca” is a soil of Eocene origin, whose marl is very rich in mineral sediments (iron and manganese in particular), once deposited on bottom of the sea and left in its composition.
It is a loose soil, poor in organic matter, and very well drained. Made up of alternating layers of marl and sandstone, it is able to retain accumulated moisture for the deepest roots, thus resisting drought.

The ``Bora`` wind

Another fundamental element of the climate of these hills is the Bora, a wind that can reach up to 120 km/h. The Bora is a dry and cold wind, made of masses of cold air that rapidly descend from the Karst heights, and spills over the Gulf of Trieste and the northern Adriatic sea, with powerful gusts from North-East. We talk about “Bora chiara” (clear Bora) when it is accompanied by sunny weather and low temperatures; on the contrary, the “Bora scura” (dark Bora) brings clouds, rain or snow.
Imagine the action of this strong wind between the vineyards: in addition to getting under control the humidity, the Bora is responsible for temperature changes between day and night, which foster the aromatic concentration of the grapes and the balancing of the acidic component.


“I don’t mind it, on the contrary; I was born with the Bora and I lived with it all my life. I remember when, as children, we walked to school, walking for miles and holding hands so as not to fall; yet the wind was so strong that it would throw us to the ground; Then we laughed, we got up, and kept walking together”.

Silvan Primosic