HYDROMETER
Wine Ingredients
Basic facts:
Volume of 1 kg dissolved sugar = 0,63 litres
Weight of 1 litre of dissolved sugar = 1,59 kg
Volume of 1 kg extract = 0,63 litres
Weight of 1 litre of dissolved extract = 1,59 kg
Weight of 1 litre alcohol = 0,8 kg (800 grammes).
Weight of 1 litre of water = 1 kg (1 000 grammes)
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Wine comprises:
Residual sugar
2-5% (20-50 grammes/litre) extract (unfermented residues such as
colour, taste, vegetable matter, aromatics)
Alcohol
Water
Example, a white wine with 10% alcohol:
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Residual sugar
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17 ml
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27 grammes sugar (17 x 1.59)
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Extract 3%
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19 ml
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30 grammes extract (19 x 1.59)
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Alcohol
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100 ml
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80 grammes (100 x 0.08)
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Water
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864 ml
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864 grammes
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This gives 1 001 grammes = 1001 degree on (specific gravity)
the hydrometer
27 grammes
30 grammes
80 grammes
864 grammes
1 001 grammes
1001 degree on the hydrometer (specific gravity)
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