Sea Buckthorn Secco 0.75 l Sea buckthorn Secco is a sparkling wine made from sea buckthorn wine. Fruit wines from the Havelland, the orchard of Brandenburg, have a long tradition and have become a hallmark of this region. Only the finest orchard fruit is used in its production to ensure the Secco meets the highest standards. As this product has an alcohol content of 11% vol., it is illegal to sell it to persons under 16 years of age.