WHISKY - FAQ's II

What is patent still distillation?

Unlike Malt Whisky, Grain Whisky is distilled in a continuous operation in a Patent Still. This is sometimes known as the Coffey Still, after Aeneas Coffey, who developed it in 1831.

Steam is fed into the base of the analyser and hot wash into the top. As the two meet on the surface of the perforated plates, the wash boils and a mixture of alcohol vapours and uncondensed steam rises to the top of the column. The spent wash runs down and is led off from the base.

The hot vapours enter the rectifier at the base and as they rise through the chambers they partially condense on the sections of a long coil through which wash is flowing. The spirit vapour condenses at the top of the rectifier and is run off through a water-cooled condenser to the spirit safe and on to the spirit receiver. Once the spirit begins to be collected it runs continuously until the end of distillation.

Because of the rectifying element present in this process the distillate is generally lighter in aroma than most Malt Whiskies. It consequently has a milder character and requires less time to mature.

What is the worm?

The worm and its surrounding bath of cold running water, or worm-tub, form together the condenser unit of the Pot Still process of manufacture. The worm itself is a coiled copper tube of decreasing diameter attached by the lyne arm to the head of the Pot Still and kept continuously cold by running water. In it the vapours from the still condense. Fed by the still, it in turn feeds the receiving vessel with the condensed distillate.

The worm is being replaced gradually by the more modern tubular condenser.

What are low wines?

This is the name given to the product of the first distillation in the Pot Still process of manufacture. It is the distillate derived from the wash and contains all the alcohol and secondary constituents and some water. It forms the raw material of the second distillation, which is carried out in the Spirit Still. The feints and foreshots are added to the low wines when the Spirit Still is charged.

What is pot ale?

Pot ale, alternatively burnt ale, is the liquor left in the Wash Still after the first distillation in the Pot Still process. It is the residue of the wash after the extraction by distillation of the low wines.

What are foreshots?

Foreshots is the term applied to the first fraction of the distillate received during the distillation of the low wines in the Spirit Still used in the Pot Still process of manufacture. They form the first raw runnings of this second distillation and their collection is terminated by the judgement of the stillman. The following fraction of the distillate is the potable spirit. The foreshots are returned to the still, together with the feints.

What are feints?

Feints is the name given to the third fraction of the distillate received from the second distillation in the Pot Still process. They form the undesirable last runnings of the distillation. As noted above, they are returned with the foreshots to the Spirit Still when it is recharged with low wines.
The term is also applied to the first and last runnings from the Patent Still, in which process they are returned to the wash for re-distillation.

The feints and foreshots from the last distillation of the season are kept for adding to the first low wines of the succeeding season.

What are spent lees?

Spent lees are the residue in the Spirit Still after the distillation of the foreshots, potable spirits, and feints. They are usually treated and run to waste.

What is draff?

Draff is the spent grain left in the mash-tun after the liquor, wort, has been drawn off. It represents, as a rule, about 25 per cent of the malt and unmalted cereals, if any, put into the mash-tun. Draff enjoys a large market as cattle food. 

WHISKY - FAQ's I

What is a single whisky?

A single whisky is the product of one particular distillery.

What is meant by saccharify?

To saccharify means to convert to sugar. In whisky distilling it refers to the process which takes place during the malting and mash-tun stages by which enzymes in the malt, referred to as diastase, turn the starch in the cereals into sugar ready for the fermenting action of the yeast.

What is diastase?

When conditions of temperature and moisture favour germination, the embryo and associated parts of the barley grain secrete a mixture of enzymes commonly known as diastase. These act to modify and make soluble the starch in the barley, thus preparing it for conversion at a later stage to maltose.

What is wort?

Wort is the liquid drawn off the mash-tun in which the malted and unmalted cereals have been mashed with warm water. Wort contains all the sugars of the malt and certain secondary constituents. After cooling, it is passed to the fermenting vats. In Malt distilleries the cereals are all malted; in Grain distilleries a proportion only is malted, the remainder being unmalted. In some cases, Grain distilleries do not separate off wort, passing the complete mash to the fermentation vessels.

What is wash?

The wort or mash technically becomes wash as soon as yeast is added to start fermentation. However, the term is usually used to refer to the liquid at the end of the fermentation. It is the wash which forms the raw material of the first distillation in the Pot Still process and of the only distillation in the Patent Still process.

What is the pot still distillation?

Malt Whisky is distilled twice - although a few distilleries may undertake a third distillation - in Pot Stills which resemble huge copper kettles.

The spirit is driven off from the fermented liquid as a vapour and then condensed back to a liquid.

In the first distillation the fermented liquid, or wash, is put into the Wash Still, which is heated either directly by fire or by steam-heated coils.

At this stage the wash contains yeast, crude alcohol, some unfermentable matter and the by-products of fermentation. During the process of boiling the wash, changes take place in its constituents which are vital to the flavour and character of the whisky.

As the wash boils, vapours pass up the neck of the still and then pass through a water-cooled condenser or a worm, a coiled copper pipe of decreasing diameter enclosed in a water jacket through which cold water circulates.

This condenses the vapours and the resulting distillate, known as low wines, is collected for re-distilling. The liquor remaining in the Wash Still is known as pot ale or burnt ale and is usually treated and converted into distillers’ solubles for animal feed.

The low wines are distilled again in the Spirit Still, similar in appearance and construction to the Wash Still but smaller because the bulk of liquid to be dealt with is less. Three fractions are obtained from the distillation in the Spirit Still. The first is termed foreshots, the second constitutes the potable spirit, and the third is called feints. The foreshots and feints are returned to the process and redistilled in the Spirit Still with the succeeding charge of low wines. The residue in the still, called spent lees, is run to waste.

In the case of the Spirit Still, the design of the still, the height of the head (or top) of the still and the angle of the wide-diameter pipe or lyne arm, connecting the head to the condensing unit, are all very important and have an effect on the distillate.

The Pot Still has changed little in general design over the centuries.

Some of the less common spirits

By the word other sprits or less common /known spirits, we mean the various spirits produced in the different countries. There are around 400-600 varieties.

Some of them are:

Aquavit -- literally mean water of life. It’s made in Scandinavian countries from potatoes or grains flavored with Caraway seeds, orange peel cardamom &herbs.

Arrack / Raki: The word arrack comes from Arabic word which means juice or sweet It is called Raki in Turkey. It is popular spirit made from the sap of a tree

Calvados:  is a spirit made from apples or pears in Normandy. Calvados is the name of district in Normandy.  Apple jack is similar apple brandy made in USA.

Grappa / Marc: Grappa is a kind of Italian brandy made from the residue of Grape skin. The fine Brand of Grappa is Negroni (Grappa Bianca)

        There is a French equivalent of grappa is also made from dried grape skins pulp & seeds the Marc

Karpi: is a fruit Brandy made from Cranberry in Finland.

Kirsch: The colorless spirit made in Black forest area in Germany, Austria & Switzerland & also in the region of Alsace

Framboie: Raspberry brandy from France.

Poire Williams This spirit is made from distillation of fermented Pears & is colorless. French, Swiss, usually makes it. & German

Pastis: French aniseed flavoured spirit, which turns milky with water. The most famous brands are Ricard & Pernod.

Ouzo: It is most popular Greek colorless spirit .It is made with Grapes

Feni : is obtained from Cashew nuts or Palm or Coconut .It comes from Western region of India ,Goa .

                Besides Feni there are many Indian drinks like Mahua, it’s produced from Mahua flowers. Tari is usually made from the sap of stem of Date palm tree.

Pulque : A Mexican drink obtained from Mezcal. It has a flavour similar to the sour milk & has to be consumed fast .

Quetsch: It’s colorless spirit from plums made in Germany & France.

Sake: The Traditional Japanese rice wine not distilled but fermented. After fermentation Sake is allowed to mature for one year before bottling. It should be drunk young.

Some of the less common spirits

By the word other sprits or less common /known spirits, we mean the various spirits produced in the different countries. There are around 400-600 varieties.

Some of them are:

Aquavit -- literally mean water of life. It’s made in Scandinavian countries from potatoes or grains flavored with Caraway seeds, orange peel cardamom &herbs.

Arrack / Raki: The word arrack comes from Arabic word which means juice or sweet It is called Raki in Turkey. It is popular spirit made from the sap of a tree

Calvados:  is a spirit made from apples or pears in Normandy. Calvados is the name of district in Normandy.  Apple jack is similar apple brandy made in USA.

Grappa / Marc: Grappa is a kind of Italian brandy made from the residue of Grape skin. The fine Brand of Grappa is Negroni (Grappa Bianca)

        There is a French equivalent of grappa is also made from dried grape skins pulp & seeds the Marc

Karpi: is a fruit Brandy made from Cranberry in Finland.

Kirsch: The colorless spirit made in Black forest area in Germany, Austria & Switzerland & also in the region of Alsace

Framboie: Raspberry brandy from France.

Poire Williams This spirit is made from distillation of fermented Pears & is colorless. French, Swiss, usually makes it. & German

Pastis: French aniseed flavoured spirit, which turns milky with water. The most famous brands are Ricard & Pernod.

Ouzo: It is most popular Greek colorless spirit .It is made with Grapes

Feni : is obtained from Cashew nuts or Palm or Coconut .It comes from Western region of India ,Goa .

                Besides Feni there are many Indian drinks like Mahua, it’s produced from Mahua flowers. Tari is usually made from the sap of stem of Date palm tree.

Pulque : A Mexican drink obtained from Mezcal. It has a flavour similar to the sour milk & has to be consumed fast .

Quetsch: It’s colorless spirit from plums made in Germany & France.

Sake: The Traditional Japanese rice wine not distilled but fermented. After fermentation Sake is allowed to mature for one year before bottling. It should be drunk young.

LOIRE VALLEY WINES - HISTORY OF WINE MAKING

Vines already existed when Romans invaded the Loire Valley.

The legend says that Saint Martin was the first to make wine in the Loire region. It was in 380.

The wine production then grew fast. In both river banks, wine makers made white wine. On the hills, they went for red wine.

Such as in Burgundy, most of the vineyards belong to monasteries and monks had developed the wine production in the whole region.

LOIRE WINES - GEOGRAPHY

The Valley of the Loire, in the Centre West of France, is often considered as the most beautiful French wine region.
The region is wide and follow the river, starting in the Auvergne and Massif Central and finishing in the Atlantic coast around Nantes city.
The Loire River is wide and deep. The landscape is quiet and undulated.
It is probably more accurate to say that the Loire Valley is made of several different regions, which have one thing in common: the river.


Loire Region Information:
Location:
From the Massif Central mountains to the Atlantic coast and Nantes cities. The Loire wine region follows the Loire river in its valley and the rivers flowing into (Cher, Loir, Layon, etc)
Weather: Atlantic weather in the West (mild winter and summer)
Continental in the East (cold winter, warm summer)
Main Cities: Nantes , Tours, Bourges
Places of Interest: Châteaux de la Loire (Chambord, Azay le Rideau, Amboise, etc)
Loire Valley wine road (the most beautiful in France !)
Angers (heritage city)
Atlantic Coast (salt production)

LOIRE VALLEY WINES

The Loire Valley is famous for its white wines. None of them use Chardonnay as a main grape variety. Chenin Blanc or Sauvignon are widely used. About 75% of the production is made of white wine. Although Loire is a land of white wine, some red wines are very interesting. They are fruity and pleasant. The Loire Valley is probably the most beautiful wine region in France and in the world.

The most basic information on the wines of Loire are:
Location:
From the Massif Central to the Atlantic coast around Nantes. The Loire wine region follows the Loire river in its valley

Loire region information

Size of the vineyards: 30,000 hectares
Grapes in Loire: Chenin Blanc Sauvignon
Production: 400 million bottles
Loire wine making

Type of Wine: Dry white wine
Sweet white wine
Semi-dry white wine
Sparkling white wine
Fruity red wine
Rosé wine

STORAGE OF WINES: STORING AFTER OPENING

Storage after opening: 

This is storage for bottles of table wine that have been opened but not completely consumed. There are many methods for prolonging the life of opened table wines but even the best can only slow the degradation of the wine. These methods are for still table wines. Sparkling wines and fortified dessert wines have different characteristics and requirements. 

Gas Systems: Sparging the bottle with a gas (nitrogen or argon) can be very effective but it is expensive and I've never known anyone who actually used a gas system over a long period of time. They just seem to ultimately be more trouble than they are worth. If you do elect to try such a system, stay away from carbon dioxide since it will mix into solution with the wine. 

Vacu-vin: An item came on the market a few years ago called a Vacu-vin. This consists of rubber bottle stoppers that hold a weak vacuum created by a hand pump that comes with the system. While some people swear by them, there is a consistent complaint that wines treated with a Vacu-vin seem 'stripped' of aromas and flavor. They actually create a lower pressure environment instead of an actual vacuum. This means they don't remove all the oxygen and oxidation of the wine will still occur.

Half bottles, marbles and progressive carafes: These are all ways of limiting the amount of air in contact with the wine. The concept is good if you move quickly and refrigerate the remaining wine.

STORAGE OF WINES - II

For any wine lover, storing wine well is very important. There are a few simple principles that need to be understood in order to select proper wine storage conditions. We can logically break down the process into just 3 categories: storing wine for the short haul, storing wine for long term aging and storing (or saving) wines that have already been opened.

Short Term Storage: 

This is wine you will consume within 6 months. These may be bottles that are just home from the store and destined to be consumed shortly or bottles that have been pulled from longer storage to be accessible for spur of the moment consumption. 

The closer you can duplicate the conditions required for long term storage, the better. However, in many situations, keeping the wines in a box in an interior closet is a satisfactory solution. 

Keep the bottles stored so that:

• the cork stays moist 

• the wines are at the lowest stable temperature possible 

• the location is free of vibration 

• the location is not a storage area for other items that have a strong odor 

Stay away from those little 9 bottle racks that end up on top of the refrigerator; it's hot, close to the light and vibrates from the refrigerator compressor.

Long Term Storage: 

This is wine that you will keep for more than 6 months before consumption. A good storage location for wine is generally dark, is free of vibration, has high humidity and has a low stable temperature. 

Generally accepted 'ideal' conditions are 50 to 55 degrees farenheight and 70 percent humidity or higher. The high humidity is important because it keeps the corks from drying and minimizes evaporation. The only problem with even higher levels of humidity is that it brings on growth of mold on the labels or the loosening of labels that have water soluble glue. 

Temperatures lower than 55 degrees only slow the aging of the wines. There have been wines found in very cold cellars of castles in Scotland that are perfectly sound and are much less developed that those kept at 'normal' cellar temperature. A near constant temperature is preferable to one that fluctuates. 

With regard to light, most modern bottles have ultraviolet filters built into the glass that help protect the contents from most of the effects of UV rays. Despite the filters in the glass, long term storage can still allow enough rays in to create a condition in the wine that is referred to as 'light struck'. The result is that the wine picks up the taste and smell of wet cardboard. This is especially noticeable in delicate white wines and sparkling wines. The condition can be created by putting a bottle of champagne near a fluorescent light for a month. 

Regular or constant vibrations from pumps, motors or generators should be avoided since the vibrations they cause are thought to negatively affect the evolution of the wines. One additional factor to avoid is storing other items with very strong odors near the wine. There have been many reports of wines picking up the aromas of items stored nearby. 

If you do not have a suitable wine cellar, there are many types of 'wine refrigerators' that will work as well. They differ from common refrigerators in that they work at higher temperatures (50-65 degree range) and they do not remove humidity from the air. There are kits available that will convert regular refrigerators into suitable wine storage units.

AGEING & STORING WINE

Whether or not to bottle age your wine after you have purchased it is a very personal and somewhat complex decision. While most white wines are designed to be enjoyed within two to three years after their vintage date, many robust red wines, particularly Cabernet Sauvignon such as William Hill Winery's Reserve Cabernet Sauvignon and Aura, will continue to evolve and improve with additional aging in proper storage conditions. 

Under the proper storage conditions, the components of red wines will interact and evolve. During bottle aging, the wine's varietal aromas and flavors, as well as tannins and pigment, interact with oak compounds imparted during fermentation and barrel aging. Tannins and pigment compounds will link together to form longer, smoother polymer chains, softening the tannic impression of the wine. This integration can help to develop increasingly complex flavors and aromas, and deepen the wine's color from purplish to a deep, brick red.

However, the primary caveat of a fine red wine improving through additional aging is the quality of its storage conditions. The ideal storage environment for wine mirrors the conditions of many wineries' storage caves: 

•

Cool Temperature:

55-65°F. Cool temperatures slow the aging process and help to develop complex varietal character.

•

Consistent Temperature:

Less than 10°F fluctuation throughout the year. Temperature fluctuations can cause the wine to expand and contract, possibly causing damage to the cork.

•

Humidity:

Between 60-80%. Humidity over 80% can encourage mold, while dry conditions can cause evaporation and oxidation.

•

Darkness:

Excessive light exposure can cause proteins in wine to become hazy, and can create "off" aromas and flavors.

•

Vibration-free:

Vibration (from appliances or motors) can travel through wine and be detrimental to its development.

•

Odor-free: 

The storage area should be free from chemical odors, such as cleaners, household paints, etc. 

Basements are usually wonderful for storing wine because they meet many of the above criteria. Other options include a little-used, interior closet in an air-conditioned home. Wine storage systems are available that provide optimum temperature and humidity conditions for serious wine collecting.