1, generally in the market to buy wine, it is in accordance with the ratio of 3:1 to add rock sugar; but because of the different brands lead to different tastes of brewing grapes; sometimes taste the wine does not feel with sweetness. And these manufacturers produce wines that are not sweet because of the incorrect ratio of icing sugar to grapes.

2, if you make your own wine at home, because the sugar content of the grapes themselves is relatively low, adding sugar together with the fermentation makes the alcohol concentration of the wine made higher, easier to preserve and improve the quality of the wine, so the choice of sugar, white sugar, honey are available. However, because adding white sugar is easier to melt, this is also an advantage of adding white sugar. The proportion of adding white sugar is about 20% or so.

3, if you make your own wine at home, you should be able to add white sugar after the grapes are mashed, this step should be completed before the fermentation of the grapes in general. If you are not afraid of the process is too troublesome, you can also be in the second or third day after the fermentation of the grapes to add sugar, this time the grapes have basically fermented well, the wine in the yeast are also fermented out of the wine at this time to add sugar will make the quality of the wine is even better.

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