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Extraction de gaz de schistes

Denis & Emmanuel ROBERT & Sébastien PRADAL - GAEC du Mas d'Intras
F - 07400 Valvignères -
Tél. +33 (0)4 75 52-75 36 - Fax -51 62

Our commitment to environmentally
responsible practices

The philosophy behind our work
What are our concrete actions for a better environment?
Why do we want a conversion to certified "organic" winery?
Will this influence the quality of our wine?

Download this text as PDF (300 Ko).


With the following text we would like to explain our approach, the philosophy behind our work. This approach is neither "more" nor "less" respectable than another, it is simply ours. We want our work to be more in line with nature and with the health of our planet.
A conversion to organic wining demands reflection, for we need to be sure that either environment and wine consumer benefit from the accomplished changes.

The grass grown vineyard, ploughed every second row:

Since the sixties a lot of vineyards are chemically weeded for 100%. Weed is destroyed with herbicides. Unfortunately this is still a major practice in France.
In the Autumn of 1998 we wished to counter erosion and make a first step in the direction of a growing respect of the environment. We started to grow grass in the middle of the vine rows.
In 2005 we refined our method and now every second row is grass grown and every second row is ploughed so that rainwater better penetrates in the soil.
We also invested in a machine, the "Tournesol" that ploughs under the vine rows and thus enabled us to reduce the use of herbicides with 100 % on the parcels older than 4 years. From September 2009 all our parcels, including the young vines, will be 100 % herbicide free.

The spraying:

Twenty years ago we fixed a spraying machine, which recycles a part of the spraying product. The inconvenience of this machine is that we can only use it in Spring, when the green shoots have just started to grow.
In t h e Spring of 2007 we invested in a sophisticated spraying system, (see picture). It allows us to spray very precisely and with small quantities through the whole viticultural season.
For many years we have tried to spray in a responsable way, a way that would harm the environment as little as possible. In organic viticulture one may only spray with sulphur and copper. Copper is a heavy metal that fixes in the soil, which isn't really that ecological all things considered… For this reason we did wait so long before starting conversion to organic viticulture.
Equipped with this high-performance machine, that allows us to spray very efficiently and to reduce the quantity of sulphur and copper used, we feel ready to officially start our conversion to organic viticulture on September 1st, 2009.

Fertilizing the vines:

The soil improvements are thought and done from soil analysis. A soil that is sound and in balance makes the vines more resistant. It defends itself better against parasites and needs less spraying.


When is wine organic?

There is not really a protocol for organic wine. It simply has to be made from organically grown grapes and needs to follow the general processing standards for winemaking Reading regulation about organic wine (from the grape-harvest) we notice that the Mas d'Intras wines are respecting this since a long time yet. However it is essential to have confidence in the vintner. Therefore a certification as organic winery is like a guarantee for those that don't know him. Certain wines, especially "marketing" wines from the "new world", are made with use of all kinds of legally authorised subterfuges in order to bring unbalanced wine back in balance. I sometimes taste these industrial wines to satisfy my cultural curiosity, but I think these wines are soulless.

We first pay attention to the grapes, then to the wine:

Before we decide to harvest a field, we have consistently tasted the grapes and had them analysed by our œnologist in his laboratory. We know exactly why and when we should harvest each parcel.
From the grapes we make natural wine with the alcohol- sugar balance of the day of harvest. We do not add tartaric acid and grape sugar is added only rarely (e.g. in some 1993 and 2002 vintage years) and only under strict control of the customs.
We add as little sulphite as possible. For that reason our manufacturing has to be clean and needs to be analysed regularly. There is an authorized maximum of sulphite and an obligatory minimum. We have always aimed the minimum quantity.
We also omitted Métatartrique Acid, Ascorbic Acid, Gum-Arabic, Citric Acid, which is commonly added at the bottling.
Finally, we want our red wines to preserve all their qualities and do not filter nor fine them anymore. Therefore they may present some natural deposit.
For all these reasons we can state that our wine will not change after 2009. The fact to be offially certified as organic winery will not change anything to our way of working in the cellar, which is already adapted to 'organic' wining since more than 10 years.

What else can we do?

Having a responsable behaviour towards the environment is a matter of observation, reflection and conscience. We should not leave to change our habits there where we can. Financially it is impossible to change everything at once, so let's move forward by making baby steps in the right direction.

Sun heated tanks:

When September is cold, we will need to warm the grapes a little before fermentation. For the malolactic fermentation (the second fermentation of the wine, after the pressing of the grapes) the temperature of the wine generally needs to stay between 20/25°C. This demands a considerable use of power from October to January.
In 2003 we made a connection between our house and the cellar. We could store our old explosion machine (in all honesty: a dangerous piece of equipment) in the attic. The sun gives us all the energy needed for heating the tanks. It is of great convenience and a real pleasure to open up the butterfly-valves to the tanks, to start up the pump and to feel the solar heat gently and lovingly warm the grapes ...

The use of "feather -weight" bottles:

Our bottles weigh 300g (lightened bottle) in stead 550g (traditional bottle = most used). Nowadays the heavier bottle is for aesthetic reasons most used.
It seems to me that the 300g bottles that we are actually using are strong and efficient enough for single use.
In my relatively small car and trailer with maximum load of 3,5 tons, I can transport 3330 of full bottles of the model we use compared to 2690 of the "traditional" type.
This means that with the same petrol consumption I can load 640 more bottles!
In addition to that 250g x 3330 = 832 Kg less glass has been used for those 3330 bottles!!!
Therefore in one year, in a small family estate as ours that makes a saving of more than 30 tons of glass !!!
Think of all the power that is needed to produce these 30 tons of glass on the one hand and to transport them on the other hand and to finally recycle them!
MUnfortunately these aspects do not count for the certifying as organic wine grower and that's a pity!

The reuse of bottles:

In theory we could reuse those bottles… but that means that all those empty bottles would need to be gathered and transported again by HGV from the place where the wine was consumed towards Intras. Then we would need some disinfection product that could eventually damage the environment and without the guarantee that no trace will stay behind in the bottles. Or we could use boiling water but therefore we would need lots of power.
I think it is preferable to use all this energy to collect the bottles locally, for recycling. The extreme heat necessary for the manufacture of new bottles is the only security that a bottle is sterile.

The use of natural corks:

We use natural corks. These are expensive but respect the philosophy of wine and also support the essential maintainence of the Portuguese woods. Moreover, it avoids the pollution caused by plastic corks.
The WWF (World Wildlife Fund) made a plea to vintners in 2002 and 2006, asking them to privilege the use of natural corks. Through the massive use of plastic corks, the production zones of natural cork are disappearing and with them their biodiversity and employment.

Reuse of wine boxes:

Thank you for returning us empty boxes without damage. We reuse them!

Public transportatio:

Our wine delivery rounds take us as far as Denmark and are quite costly in terms of diesel oil. Little by little though we manage to reduce our CO2 emissions thanks to public transports. My van often stays in Paris or in Germany and I get back to it with the train. The wine is send by means of haulage, which is less demanding in energy.


Would you like to share your opinion?
Don't you agree or do you maybe have suggestions?
Then please write me. I'm looking forward to every reaction and I'll respond personally:


Denis ROBERT


Download this text as PDF (300 Ko).


 

 

Our since 1998 grass grown vineyard

 

 

The spraying- machine "Turbocoll"

 

 

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Our solar panels

 

 

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