Egg-shaped tanks in winemaking date back to the year 6000 B.C. Archaeologists discovered the remains of the traditional Georgian Kvevr used in winemaking by the Georgians. The tradition from one of the most famous winemaking countries was projected to the present time by Wine&Egg.
Modern Eco-Concrete was added to the traditional egg shape. To completely eliminate the impact of potential negative factors, we were the first to produce egg-shaped wine tanks made of one part. We upgraded the traditional shape with better functionality and finalized the product line with a wide variety of stands made of various materials and of different shapes to meet the various requirements of our customers. Premium quality wine producers are increasingly returning to primitive and traditional wine production with the emphasis on natural and traditional. For this purpose, concrete egg-shaped tanks are ideal. Their egg shape (golden ratio) provides incessant wine circulation while the concrete naturally regulates the temperature of the wine.
The optimum volume for the concrete’s own regulation of wine fermentation is between 900 and 1500 litres. Therefore, we decided to launch the production of 1000-litre concrete egg-shaped tanks. Relatively thin concrete walls of the egg are able to keep the temperature stable with no need for artificial cooling. The fermentation produces the warmth which creates convection currents that stimulate the circulation of fermenting wine. The concrete egg is not the only container in which all the mentioned processes take place, however, it is most efficient in the process of fermentation compared to all the other containers (of different shapes and materials) due to its original shape. This shape and its smooth surface let the wine circulate more freely than in traditional fermentation containers. Constant circulation lets the taste to develop its complexity through its constant contact with lees.
The structure of Eco-Concrete is not permeable to liquids, however it permits the air to make contact with wine. This results in the softening of tannins, creating a richer body and developing more complex tastes. Unlike wooden barrels, which have similar influence on wine, Eco-Concrete does not add any vanilla or other spices’ tastes coming from oak but it enables the winemaker to preserve fruity characteristics of wine without the stainless steel’s reduction features and adds a texture without the tastes coming from oak. Eco-Concrete thus combines the benefits of the oak barrel and inox vessel.
The wine stored in concrete egg-shaped tanks is rich in tannins and stable by nature, which ensures the winemaker long-lasting wine with no need for additives to preserve wine’s quality and premium taste. Moreover, the tannins in concrete barrels limit the content of proteins and thus prevent the wine form becoming cloudy.