Wine wreath, also known as cognac oil, is a fragrance extracted by steam distillation from grape sediment produced during the production of wine. It has a strong aroma, with the astringency characteristic of wine and a rich, fruity scent. It is similar to the aroma you get the moment you open a wine cork. Cognac originally refers to brandy produced in the Cognac region of France. Brandy is made by squeezing grapes, letting them rest, fermenting them into alcohol, and aging them in barrels. Cognac oil has a strong aroma, but adding a little bit of it will help you feel the richness of the brandy and the fruitiness of the grapes.