FROM THE VINE TO THE BOTTLE

LA TAILLE Pruning (November to March)

The pruning begins in mid November once the sap has left the vine.
In the Medoc, it is customary to prune the vines by leaving 2 branches with 3 or 5 buds per branch, and 2 small branches on the stump.
This is called "la taille guyot double"

LE PLIAGE Folding process (March to April)

Branches are attached to the lowest wire with either staples, string or "vime".

LE MAILLAGE Stitching (March to April)

The acacia wood stakes are referred to as "carrassons" and "carrassonnes".
The "carrassonnes" hold 2 wires to hold up the branches and the "carrassons" hold 1 wire to fold the branches.
The maintenance of the "carrassons" and the "carrassonnes", the vines, the "culées" and the wooden stakes holding up the wires at either end of each row is referred to as "Le Maillage"

LA COMPLANTATION (April to May)

Young plants replace the stumps of dead vines.

LES CAVAILLONS (April to harvest)

The tractor goes through the rows of vines with special attachments to ventilate the soil and remove the weeds.

TREATMENT OF THE VINES

The vines are treated throughout their vegetative cycle using insecticides and anti-bacterial products in order to combat mildew and mite disease.
Treatment ceases one month before harvesting.

THE VEGETATIVE CYCLE

LE RELEVAGE (June to September)

This involves tying the branches to the wires.

LA COUPE Leaf thinning (June to September)

Branches are trimmed in height and cut across to facilitate various treatments, the beneficial effects of the sunshine and most of all to limit the growth.

LES VENDANGES Harvest (September to October)

Grapes are hand-picked as soon as the grapes are ripe.
At Château Saint Mambert the 3 grape varieties are harvested simultaneously and therefore undergo alcoholic fermentation together.
The harvested grapes are taken to the wine presser and de-stemmer where the grapes are separated from the stems and crushed slightly before being transferred to a stainless steel vat in order to begin the process of vinification.

VINIFICATION

LA FERMENTATION ALCOOLIQUE Alcoholic fermentation

Natural sugars are transformed into alcohol due to the yeast contained in the grapes combined with the release of carbon dioxide and an increase in temperature.
The temperature of the vat must remain between 28C and 30C.
During the fermentation process, we release the liquid and pour it back onto the hard layer of skin and pips in order to extract the tannins and the colour.
This is done twice a day and takes half an hour each time.

LA MACERATION Maceration

At the end of the alcoholic fermentation, the vat is closed for 3 weeks.

LES ECOULAGES The running off process

At the end of the maceration the wine, "vin de goutte", is run off to separate it from the solids, namely pips and skins called "marc".
The "marc" is then pressed to obtain the "vin de presse" which is used during the blending process known as "assemblage".
The wine is transferred to barrels of which 30% are new.

LA FERMENTATION MALO-LACTIQUE Malo-lactic fermentation

This starts at a temperature of 18-20C thus requiring the "chai" to be heated.
It consists of transforming malic acid into lactic acid using malolactic bacteria.
The aim is to reduce the acidity in the wine thus allowing a better conservation.
Whilst the wine remains in the barrels the "ouillage" and "soutirage" are carried out.

LE OUILLAGE Topping up

The wine remains in the barrels for one year.
These barrels are simply closed with a glass bung which causes some of the wine to evaporate.
The "ouillage" process consists of topping up the barrels with wine to prevent oxidation.
This is carried out twice a week.

LE SOUTIRAGE Racking

This consists of separating the clear wine from the lees (the deposit found at the bottom of the barrels) every 3 months.

LE COLLAGE Fining

In March, before bottling, the wine is clarified using egg whites (3 to 4 whites per barrel); the egg whites act as a natural filter for the wine allowing particles to sink to the bottom of the barrel over a period of 40 days.

 

L'ASSEMBLAGE Blending

The "vin de presse" is added to the wine in varying quantities every year. The wine is left to mature in barrels for 18 months.