Natural Sugar


Natural Sugar The sugar present in the basic ingredients. To determine its value, extract the juice and take the S.G. Deduct 7 to allow for the solids in the juice. From this can be calculated the sugar addition required. The only fruit which have a high enough natural sugar content to make wine consistently are grapes.

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Natural Yeast


Natural Yeast See Bloom on Fruit.

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Neutral Spirit


Neutral Spirit A term for a colorless, tasteless (except for the alcohol) spirit, such as Vodka, grain alcohol or alcool, useful for fortification and liqueur manufacturing purposes.

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Nitrate


Nitrate The naturally occurring salts from which plants obtain their nitrogen. Yeasts cannot utilize these salts and so, despite plenty of nitrogen in a must, more has to be added in a form the yeast can metabolize. See Additives ; See DiAmmonium Phosphate ; See Nutrients.

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Nitrogen


Nitrogen One of the most important elements in the cell structure. All proteins contain nitrogen. Plants build up their protein from the soil, a thing other life forms cannot do. Instead, they have to utilize plan protein and rebuild it to suit themselves. Yeasts require protein and they either obtain it from their dead "cell mates" (with consequential fusel oil production), or they can built it from ammonium salts.

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Noble Mould


Noble Mould; Noble Rot English translations of Pourriture noble. See Botrytis.

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Non-Vintage


Non-Vintage Wines do not always bear a year label on the bottle. For this to happen, the wine must be of outstanding quality or come from vintage only appelations such as Bordeaux.

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Normal Solution


Normal Solution Chemicals are mixed in solutions whose concentration is related to the molecular weight of that particular compound. A normal solution contains the molecular weight in grams per liter of solution; i.e., Sodium hydroxide has a molecular weight of 40, so that a normal solution will contain 40 g per liter of the salt.

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Nose


Nose Another word for Bouquet of a wine

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Nutrient


Nutrient See Additive; Nitrogen.

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Nutrient Salt


Nutrient Salt  See DiAmmonium phosphate ; See Magnesium Sulphate ; See Potassium phosphate ;

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