SGI:07 – Wine Ingredients

HYDROMETER
Wine Ingredients
Basic facts:  Volume of 1 kg dissolved sugar = 0,63 litres Weight of 1 litre of dissolved sugar = 1,59 kgVolume of 1 kg extract = 0,63 litresWeight of 1 litre of dissolved extract = 1,59 kgWeight of 1 litre alcohol = 0,8 kg (800 grammes).

Weight of 1 litre of water = 1 kg (1 000 grammes)

Wine comprises: Residual sugar2-5% (20-50 grammes/litre) extract (unfermented residues such as colour, taste, vegetable matter, aromatics)AlcoholWater
Example, a white wine with 10% alcohol:
Residual sugar 17 ml 27 grammes sugar (17 x 1.59)
Extract 3% 19 ml 30 grammes extract (19 x 1.59)
Alcohol 100 ml 80 grammes (100 x 0.08)
Water 864 ml 864 grammes

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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