More than 55 crus make up the blend. Typically, Laurent-Perrier incorporates 10% to 20% of reserve wines into the blend, though some years this is higher. The second fermentation on its lees lasts at least three years. The dosage used is a liqueur made from sugar and wine from the same batch. Roughly 45 grams of this liqueur per liter are required.
Its bright, shining color is a fairly deep golden hue. Its nose is intense, with a range of aromas, such as dried fruit, almonds and hazelnuts, with grilled and toasted hints. After a little aging, these will evolve to even deeper aromas of honey and pine resin. The richness of the Demi-Sec naturally calls for sweet dessert dishes, such as pastries or chocolate, enhancing them with considerable depth.