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Cognac Balance

cognac stillThe process of distilling cognacs requires that the wines are distilled twice, the second distillation must be between 67-72.4 degrees. The spirit, known as eau de vie, is water clear and tasting it can render the tongue numb for several days. Little surprise then that young cognacs, aged for the minimum time, have to be reduced to a lower level of alcohol and additives used to colour and hide the aggressiveness of the spirit and so achieve some Cognac balance.

The natural colour of cognac is derived from the tannins in the oak barrels. The use of new barrels after distillation to give the cognac a quick boost can actually provide a more aggressive fieriness in the spirit in the early stages. Whilst a level of colour will develop in the spirit during the first stages of ageing, nothing can overcome the huge imbalance between alcohol and taste until the cognac has been in the barrel for at least ten years. Both sugar syrup and caramel are therefore often used to help address the fieriness and lack of colour in young brandies, a process known as obscuration.

About twenty years ago there was an unscripted charter between the big cognac houses that the maximum obscuration of cognac would be no more than 2%. The increasing demand for young (and cheaper) cognacs has meant that the big houses now buy their cognacs for ageing sometimes only eighteen months after distillation. Often they are bottled as young as 3 years old. This creates a massive problem especially when they are blended with cognacs from the Champagnes which age at a much slower rate than those from other crus. Inevitably, the younger the cognac the more sugar and caramel is needed to create an acceptable level of flavour and balance. As available cognacs become younger, the obscuration level has had to increase and it is now substantially more than 2%.

Of course there is another element to balancing cognacs – dilution. Cognacs will gradually reduce naturally, however, nowhere near quickly enough for the big houses to sell profitably. Young cognacs between 60-65% abv will need more than 50% water adding to them before they can be sold. Water itself is difficult to add successfully though very quick chilling of the cognac can help.

Perhaps the most accepted additive, and one that is far more natural than others, is the use of boisé. Produced by boiling oak chips over and over again in cognac, it is dark in colour and can be viscose. When added to cognac it can provide quite a bitter effect until it has had time to complete its accelerated ageing process. Some people refer to this as a “false ageing” but it is not. It uses exactly the same ingredients as occur naturally in cognac so in effect, it is an age accelerator. However, too much can provide an undesirable bitterness when used in young cognacs.

Balancing the strength and flavour of fine cognacs is a great skill. There is a place for some additives but we avoid the use of sugar and caramel as we believe that any cognac from the Champagnes under ten years old is not sufficiently developed to ever create the truly memorable qualities found in Hermitage Cognacs.

Read more Technical Topics on our Brandy Education page.

The Rancio

Brandyclassics MDProfessionally, as an industry assemblage of blenders, cellar masters, connoisseurs, distillers and negoçiants, our aim is to provide the very finest cognacs we can for each market sector. We know that there is no alternative to long ageing in oak barrels to enhance the distillers’ skills and provide the flavour and richness (Rancio) that is so desirable. Perhaps it was by accident in the 16th and 17th centuries that the chemical changes taking place between wood and spirit were noticed. Over the centuries the effects of ageing have been recorded and gradually formed the criteria by which the standard of a modern cognac is defined.

Cognac cellarsPerhaps also by accident, after discoveries of old barrels in the corners of family cellars, it was found that some of the oldest cognacs had acquired a sort of maderization and developed an interesting richness. This effect was noted in some cognacs after only 20 – 30 years of barrel ageing but those from the Champagnes took longer to develop it. Charles Walter Berry of Berry Brothers is said to have described this character of fullness and fatness in some brandies as rankness (rancio), an effect also noted by some tasters of Roquefort cheese.

cognac ageingIt is the oak barrels which produce this most agreeable ‘rancio’. Oak has little or none of the resinous substances found in other woods (that can pollute the spirit with undesirable tastes) and it provides a number of useful elements: tannins the best known comprise a mere 5% and lignin, equally vital, a further 23%. Much of the rest is made up of the relatively neutral hemi-cellulose which gradually dissolves in the maturing spirit and imparts an agreeable sweetness found in older cognacs. The tannins and lignins dissolve at different rates so after 5 years 10% of the lignins and 20% of the tannins will have been absorbed. After ten years this will have doubled but in later years the rate of absorbtion will slow. Conventional wisdom says that in some cases it takes 50 – 80 years to absorb all the tannins in the wood.

Chemically, rancio derives from the oxidation of fatty acids in the spirit into ketones which produce the richness felt on the palate. It is reminiscent of an old madeira wine, a sort of rich pineapple mustiness which we all hope to find when tasting old cognacs. But this is only one of many chemical reactions and their effect on the palate. One team of scientists, led by Dr Heide, detected 334 ingredients in cognac; 24 acetals (ethylates of aldehyde and alcohol), 27 acids, 63 alcohols, 34 aldehydes, 25 ketones, 77 esters, 19 ethers, 3 lactones, 8 phenols and 44 diverse substances. Many of these substances have still not been separated and analysed; some form an important part of the mix; some strongly influence the taste. For example, ethyl compounds are strongly reminiscent of rotten fruit. Finding the right combination of these elements in an old cognac does not always happen but when it does you will know that you have tasted a very fine cognac that may have started its life as much as a hundred years ago. Perhaps the very best example of ‘rancio’ we can offer is the Hermitage 1914 Borderies.

Read more Technical Topics on our Brandy Education page.

Brandy Bottles

Glass containers and bottles are believed to have first been made around 1500 BC but serious use of containers made out of glass probably did not occur until around 100 BC. More practical applications for glass were established with the advent of glass blowing, probably around a thousand years later. Modern glass bottles are made in commercial moulds and most bottles that contain alcoholic beverages, including brandy bottles, are made of clear glass.

That however has not always been the case. The traditional brandy bottle started life as a green or, as in the case of cognac, black glass container. The dark colour may have been chosen to hide any sediment that had been left in the bottom of the barrel.  Modern glass however is pure and bright which enhances the cognac in the bottle to the highest level. Today we use a wide range of such bottles, many of which are produced from recycled glass.  Although the quality of the glass used varies considerably, we choose to buy all our bottles from Saverglass who have a large depot in Cognac.

Hermitage 1947The size of early hand blown bottles often depended on the quantity of glass the blower had on his pipe and so the quantity each bottle held was largely guess work.  It has now become tradition that the cognac bottle is an upright 70cl size but the volume only became metric in the mid-1950s. Before that, all spirits were measured in imperial measurements.  Strangely, European spirit bottles are now all 70cl whereas in the USA they opt for the slightly larger wine bottle size of 75cl.

Today, there is a general consistency of bottle shapes havingBaron de Sainte-Fauste developed from region to region and beverage to beverage. For cognac the very basic upright bottle shape is known as the “Cognacaise”.  At Hermitage, we use the “Exception” bottle but also a range of carafes to which many customers are attracted. The traditional bottle shape for armagnac is the “Basquaise” which is round with flat sides and for calvados the longer necked “Normandy” bottle is still generally supplied in bottle green.

Read more Technical Topics on our Brandy Education page.

The Difference Between Armagnac and Cognac Production

The difference between armagnac and cognac production is considerable.  Originally the predominance of Ugni Blanc and to a very much lesser degree, the Folle Blanche and Colombard grapes in the vineyards of Cognac provided a basis for Armagnac production. Now the use of Folle Blanche is considerably greater and another grape variety is also allowed. Known as Baco, it is a cross between the Folle Blanche and the Noah, a grape not known for making quality wine but in many ways ideal for armagnac since it crops relatively late and in good quantities.

As with cognac the winemaking is relatively basic using natural yeasts to eschew sulphur dioxide, sugar and other additives. The process is designed to produce an acceptably neutral raw material for distillation. There is, however, one crucial difference. The Armagnaçais are allowed to use the continuous presses (forbidden for use in Cognac) which often include the pips, skins and other impurities that further increase the potential richness of the spirit.

Armagnac production

This richness is also intensified by the use of a special type of continuous still. Developed during the nineteenth century it is now known as the traditional armagnac still. The ‘jet continu’ (flowing continuously) method of distillation has been responsible for the region’s fame and fortune since the end of the nineteenth century. The wine, ‘chauffe-vin’,  is heated in a cylinder  by the pipes containing hot alcoholic vapours from the still. The wine, now heated to 80 degrees, then runs into the upper half of a double still (see diagram). In the old days this would enter from the top but on more modern stills it enters below the top plate.

The clash allows the vapour to absorb some of the qualities and congeners of the incoming wine. The lower the plates the hotter they are thereby ridding the descending wine of an increasing proportion of its alcohol content. As it reaches the lower still the wine is boiling at just over 100 degrees Celcius. The solid residue of the distillation, known as ‘vinasses’, is evacuated through a pipe in the lower half of the still; the ‘têtes’ can then be taken off from the head of the ‘chauffe-vin’. The armagnac method of distillation is potentially richer in congeners and fruity and ester-ish flavours, than the stronger spirits made in orthodox pot stills. Even today the armagnac spirit can emerge from the still as low as 52 degrees, a good 15 degrees lower than cognac. This partly explains armagnac’s fruity and slightly coarser qualities.

Armagnac, once distilled, requires careful handling. Made in the traditional way the spirit retains more of the original wine. This is partly due to the impurities which render the spirit unappetizingly raw for a longer time than spirits distilled by other methods. It is these impurities that make armagnac interesting and provide a wealth of different flavours and qualities often dominated by prune flavours.

Read more about Armagnac in Technical Topics on our Brandy Education page.

David on Technical Topics – The Growth of the Armagnac Industry

armagnac regionThe growth of the Armagnac industry has taken a long time from its very early beginnings.  At the turn of the twentieth century the French boundary commission decided to follow local customs and divide the Armagnac region into three, The Bas Armagnac, Ténarèze and Haut Armagnac, each one corresponding to a geological, geographical and commercial reality. The finest of the armagnacs come from the Bas Armagnac region whilst at the other end of the scale, very little is produced in Haut Armagnac, having never really recovered from the Phylloxera outbreak at the end of the nineteenth century.

The outbreak affected the whole of the Armagnac region and by 1937 it was producing only 22,000 hectolitres of spirit, less than a quarter of that produced in the cognac region. The German occupying forces during the second World War were largely unaware of the spirits’ qualities and left most of the locals’ stock intact.

grapes for armagnac

After the War, some cognac houses invested in the area seeing an opportunity for obtaining additional grapes to be used for making cognac but the quantities available were too small to be of real use. Even so the general quality of the brandy, especially in the east of the region, was poor and there was little or no commercial infrastructure in place.  In the late 1940s trade had slowed to the point where many of the smaller growers, short of cash, simply gave up.

armagnac bonbonnesEven with this reduced vineyard area, demand and production in the 1960s started to grow again.  Sales in the domestic market grew faster than exports and mainly comprised young, cheap brandies.  This resulted in little being left in the barrels to sell in later years as vintage armagnacs but interest in the fruity brandy had begun to develop.  By the start of the 1980s production had risen to nearly 35,000 hectolitres of pure spirit, a level that by 1990 had nearly doubled to 60,000 hl pure. The Armagnaçais had started to realise the many benefits of their spirit over their competitors.

Although cognacs continue to outsell armagnacs by a huge factor, the biggest benefit the Armagnaçais have over their rivals in Cognac is that they can offer so many vintages.  Janneau, who started to market vintages in 1973, claimed that it was their biggest weapon against the Cognaçais as it created an image of quality.

David on Technical Topics – Armagnac, A Brief History

There is something unusual occurring in the region of armagnac, the people are Gasçons but the closer you get to the centre, around the small town of Eauz, the more they refer to themselves as Armagnaçais. But whatever they call themselves, they are warm and friendly, lovers of rich food and drink especially truffles and ‘foie gras’, and inhabitants of a rural paradise unspoilt by urban sprawls. The region is tucked away about a hundred miles south of Bordeaux. It stretches back from the sands of the Landes through a series of gentle valleys, which have none of the grim monoculture that marks other vineyards, and provides a most agreeable and varied vision of rural bliss.

Armagnac in southern France

However good the area and people, the region is far from the ports and unsuitable for an internationally traded spirit. Armagnac was and remains a reflection of French individualism where its merchants are united as a community and unlike the Cognaçais, still regard themselves as the same class as the growers. By itself individualism would not be of sufficient interest to them but when teamed with a drink as exciting as Armagnac, a unique situation is created. At its best armagnac offers a closeness to nature, a depth of fruit and warmth and a range of vintages that even the finest cognacs cannot match.

In all probability the Armagnaçais were distilling brandy two hundred years before cognac was made, the process being brought over from Africa by the Moors who had used distillation for making perfumes. The spirit produced around the towns of Auch and Bayonne was a local speciality which by the 16th century, had become known as armagnac. But the Armagnaçais lacked the spirit of openness and commercial aggressiveness that those making cognac further north were already exploiting in their trade with the Dutch, English and Irish from the port of La Rochelle. As a result, armagnac did not compete as a rival to cognac in the market that counted – the fashionable society of ‘Restoration’ London – and so it became submerged in the mass of brandies from Bordeaux and Nantes which were considered inferior.

continuous stillBy the nineteenth century armagnac was rescued from its rural seclusion by two dramatic developments. The first was the invention of the continuous still which was essential for extracting armagnacs’ particular qualities from the sandy soil and the second, was that many canals were opened enabling the wines to be transported to the port of Bordeaux.

continuous armagnac stillThe continuous still, perfected by a peasant by the name of Verdier, retained more of the essential elements in the wine than did the orthodox small pot stills used in cognac. Perhaps more importantly, this still was more easily transportable from one grower to another. Since many of the growers owned only a few hectares of land and simply couldn’t afford to have their own still, this was a necessity. The continuous still provided the Armagnaçais with a raw brandy which was capable of development, in time, into an even more complex spirit than cognac. Although the new still created some initial roughness and woodiness, these effects were overshadowed by the more defined fruity flavours that emerged from using a lower distillation range.

Read more Technical Topics on our Brandy Education page.

Amazon’s Sommelier by Phone Service

David Baker is our resident expertOnline retailer, Amazon, has just launched a new Sommelier By Phone Service in Japan.  Prospective purchasers can leave their phone number on the purchasing page of a specific bottle; they will then be telephoned by a sommelier who will answer questions and advise on flavour and alternatives; more information will follow by e mail. Another great innovation by Amazon – or is it?

Here at Brandyclassics we have been offering this service since our inception, a quarter of a century ago. Always happy to talk and advise about our handpicked products by phone or email, we think our experience and expertise provides an even better service than Amazon. So, if you have a question about our products, please contact us on 01225 863988 or cognac@brandyclassics.com.

David on Technical Topics – The Cognac Wines

For many years, cognac quality has centred mainly on the distillation process and the basic needs of providing a relatively acidic and low alcohol wine. After the Phylloxera, in the late nineteenth century, viticulturists started to recognise the need to control the wine, harvest and production methods to a far higher level. The St Emillion (Ugni Blanc) grape, favoured for its resistance to disease and greater cropping, became the dominant variety and a key part of modern cognac wines.

The increasing demand on the industry for more cognac created further demands on the viticulturist to provide greater quantities of clean (low in sulphur dioxide), low alcohol wines fordrum press distillation. Regulations introduced in the 1930s banned the use of continuous wine presses that crushed the grapes since the additional pressure produced an undesirable stream of tannic and oily substances from the pips. In their place, modern rotating drum presses gently release the juices from the undesirable pips and skins.

Although climatically the Charente region is better suited to growing cognac vines than its surrounding regions, sun, rain and occasionally frost can have a severe effect on the wines produced. The Ugni Blanc matures late and is often not ready for harvesting until late October. In exceptionally cold conditions, when the grapes are picked cold, difficulties with fermentation occur creating a wine that is both thin and flat and which develops further difficulties in distillation. Perhaps a bigger problem with the weather, especially with more recent climatic changes, is the warmer autumns that create greater sugar levels in the grapes thus making a stronger and sweeter wine. The fully ripe Ugni Blanc grapes will produce a wine around 11 percent abv so the trick is to harvest just before they obtain maximum ripeness; an ideal strength is around 9 percent abv. The vintages of 1976 and 1989 are a case in point – wines often exceeded 11 percent abv making the fermentation too quick and the ethanol produced too great. This can create a cognac that is flabby and generally tasteless. Rain can also create problems especially in the summer when the grapes are filling out. The damp and warm conditions will allow fungus and rot in the tightly formed clusters so regular, preventative spraying is critical.

Even today wine making skills are still fairly basic. The wine is usually transferred into concrete, cognac wine tanksor in some more modern cases fibreglass lined metal tanks, for a quick malolactic fermentation. Special yeasts developed by the Station Viticole, the technical division of the BNIC, are used to encourage faster fermentation, a process that should take about six weeks. The longer the period of time between the fermentation and distillation the more the valuable esters that react with the tannins in the oak are lost. Many distillers will use the lees, in effect the pulp of the grape, to add further individuality and flavour to their distillations. A director of the Station Viticole once pointed out that it relies on nature, “We adapt our wine making skills to the needs of the still”. For all they are doing, he says, is preserving the interesting elements in the juice. The better the wines produced the greater opportunity there is to make the finest cognacs, like Hermitage.

David on Technical Topics – The Vines

The chalky soil of the Charente, particularly in the Champagnes, is not unique since it is also a notable feature of the Champagne growing region (it is the ‘Champenoise’ who stole the name for their famous drink). The chalk provides excellent drainage and can also store substantial quantities of water which the vine roots can easily access. Crucially too, chalky soil, which provides very few nutrients, improves the quality of the grapes.

Whilst the ‘terroir’ in the Cognac region can change, the grape varieties used have changed only twice in the last four centuries. In the 17th Century the region was largely planted with Balzac. It had some important characteristics in that it was a good cropping variety and didn’t bud too early which avoided any potential spring frosts. By the turn of the 19th Century the Folle, or Folle Blanche as we know it today, and to a lesser extent the Colombard, had largely replaced the Balzac. Both of these varieties had already been grown in the Armagnac region with considerable success.

By the mid-19th Century demand for cognac had grown considerably and there was increasing pressure on the vineyards to produce more wine. This increased demand had a detrimental effect on the vines as their roots weakened and they became susceptible to the tiny, yellow, louse, Phylloxera Vastatrix. The Phylloxera outbreak devastated European vineyards around 1870 – 1875 and most of the cognac vines died. It took twenty years before a new rootstock, principally grafted with an Italian grape variety, known as the Trebbiano Toscana from the hills of the Emilia Romagna, was imported from America. The grape became known locally as the St Emelion du Charente but is better known today as the Ugni Blanc. This green acidic grape, which produces a low alcohol wine with little character, is normally used as a base wine for blending.

After the Phylloxera the Cognaçaise started to plant their new vines in rows rather than the uneven bush planting methods used before. This new method of planting produced a greater concentration of vines per hectare and more recently has enabled the use of machines to pick the grapes. With careful pruning the vines, which grow on wires, can grow up to 1.8 metres high though are usually between 1.2 – 1.5 metres. The vines are still kept relatively low in order to take advantage of the reflection of the heat from the chalky soil. In some cases grapes at the top of a vine can take a week longer to ripen than those close to the ground.

Cognac grape picking

Machine harvesting is now used in virtually every vineyard and has become well adapted to the modern methods of viniculture. Vine planting is controlled at a maximum of 3000 per hectare but this is a substantial number. Improvements in harvesting have increased the amount that a hectare can now produce. This was demonstrated a few years ago when the Chinese demand for cognac was high. As a consequence the BNIC changed the maximum permitted allowance to 10 hectolitres of pure alcohol per hectare (hl/ha) and many vineyards achieved this – only a few years earlier they had been struggling to produce 8.5 hl/ha.

However, as with all harvesting the weather is the biggest influencing factor. Whilst in most cases the Charente ‘terroir’ holds good, extremes of rain and sun can either delay the harvest or produce too much sweetness in the grapes creating a ‘pappiness’ in some cognacs. Cognac viniculture has come a long way in a relatively short period. If we can find Grande Champagne cognacs in 80 – 100 years’ time that were made in the last 20 years, they will be the true Siècle d’Or.

David on Technical Topics – ‘Terroir’, The Land

The French use the term ‘terroir’ uniquely to describe geological and climatic conditions as a basis for their system of ‘Appellations Cognac Controlee’. This is the geographic, quality control that defines the cognac crus and is vital for the Cognaçaise to differentiate their products. All the brandies entitled to the ‘cognac appellation’ are made from the same grape varieties, harvested in the same way, at the same time of the year, fermented in similar vats, distilled in the same type of still and aged in regulation oak barrels.

There are six crus of cognac and in the centre is the Premier cru de Cognac, Grande Champagne, from which most of the finest cognacs come. Most Hermitage Cognacs originate from here.  Cognacs crus form concentric circles with Grande Champagne as a rough semi-circle in the heart. As you move further away from the centre, the cognac quality steadily decreases. Over time, cognac producers have gradually moved closer to the centre of the region.

Cognac crus

In the west of the cognac region lie the islands of Ré and Oléron and the port of La Rochelle. Towards the east is the region of Limousin famous for its oak forests, the wood of which is used for the production of barrels used to age cognac. The landscape of the region is generally that of rolling hills, resembling the Sussex Downs, only with vines rather than pastures. This comparison is no accident since ‘cognac is a brandy of chalky soil’.

The heart of the Grande Champagne is composed of a special sort of chalk, the Campanian, a name which echoes the Latin origin of the word ‘Champagnes’. This pure chalk is found mainly on the higher elevations of the cru and is one of three layers of variously chalky soil which comes to the surface in the area. The other two layers are also rather special. Santonian chalk is named after the collective area of ‘Saintonge’ which covered much of Petite Champagne and Cognaçian chalk which surrounds the town of Cognac. The soil in Grande Champagne, like all other chalky soils was formed by the accumulation of small fossils including one found nowhere else called Ostrea Vesiculari. Fault lines made up of silica and marcasite also exist but it is the chalkiness in the soil which is crucial due to its physical properties, crumbliness and friability. The Santonian chalk is more solid and slightly less chalky but still quite crumbly and extends over some of the smaller slopes of Grande Champagne and Petite Champagne.

The Borderies cru, to the north of Grande Champagne, has special clay in the soil known as groies which dates geologically from the Jurassic era, some ten million years ago. It is a mixture of chalk, which is gradually breaking down and clay and produces a unique cognac with nutty and toffee qualities. Sometimes underrated this cognac is very different from the other crus. The surrounding crus of Fins Bois and Bon Bois are quite difficult to define, being a mixture of arable soil, compacted chalk and clay. They usually produce some unremarkable cognacs but there are a couple of exceptional areas. One is to the North East of Jarnac and the other is close to the Gironde estuary. Both have quite dense chalk and can produce some excellent cognacs. The sixth cru, Bois Ordinaire, makes little, if any cognac these days but it does supply eaux de vie for other purposes.

The climatic conditions over the area are usually regarded as temperate. Although snow is seen from time to time, very cold conditions are unusual and the extreme heat often experienced on the Mediterranean coast is rare. So it is in these rather special conditions, where vine roots can spread through the soil sometimes to a depth of more than twenty five metres, that the Cognaçaise can claim uniqueness, unmatched by any other part of the world. They are the perfect conditions for ‘Appellation Cognac Contrôlée’.

To read more Technical Topics go to our Brandy Education page.