Step 1
Manual harvesting
SEPTEMBER: the grapes are transported in 45kg ventilated boxes to prevent crushing and maceration.
Step 2
Pressing
The harvested grapes are pressed during the day. Note: the grapes are placed in the press intact, attached to the stems.
Step 3
Clarification
After resting overnight, the juices are clarified naturally. Then they are transferred to the fermentation tank.
Step 4
Alcoholic fermentation
The juices ferment in temperature-controlled stainless steel tanks and will remain at rest for 6 months, stabilised by the winter temperatures.
Step 5
Blending
MARCH: the tanks are tasted one by one, and the task of blending begins for Louis Brochet.
Step 6
Bottling
APRIL/MAY: the bottles are filled, leaving a maximum of 5cl. The addition of the liqueur de tirage (containing sugar and yeast) initiates a second alcoholic fermentation.
Step 7
Secondary fermentation
Over 2 months, the yeasts added to the wine transform the sugar into alcohol and carbon dioxide gas, forming a light sediment and creating pressure inside the bottle.
Step 8
Ageing
Typically, the cuvées are aged in the cellar for 24 – 36 months. Our special vintages can remain there much longer.
Step 9
Riddling
Several months before date chosen to release the wine for sale, the bottles are turned and tilted by a system of gyropalettes to collect the sediment formed by the inactive lees in the neck of the bottle.
Step 10
Frozen disgorgement
Once the riddling cycle is complete, the sediment is expelled from the bottle. Its neck is dipped into a tank cooled to -25°C, forming a plug of ice enclosing the sediment. The bottle’s cap is removed, allowing the ice plug containing the sediment to be ejected.
Step 11
Dosage
The space left by disgorging the sediment is filled by adding liqueur d’expédition (or liqueur de dosage) made from the Domaine’s reserve wine and beet sugar. The amount of sugar in this liqueur determines champagne’s different levels of sweetness: extra-brut (0<6 g/l of sugar), brut (<12 g/l), sec (17<32 g/l) or demi-sec (32<50 g/l).
Step 12
Labelling
A unique feature of Champagne Louis Brochet is that the back labels are created on site, containing detailed notes about the bottle’s vinification: the varietals and years, the bottling, disgorgement and dosage dates.