Another kind of red wine is a pure fake, such fake wine may be encountered in some platforms, the so-called wine is the use of 100% grape juice brewing wine, but most of such wine is the use of coloring, pigments and other processing and become. Here to teach two simple identification methods:

1, paper towel identification

Can use a white clean paper towel, folded into several layers, will be a few drops of red wine, if the liquid in the paper towel on the uniform diffusion of the real wine, and if the color can not be uniform diffusion of the wine that can be identified as a fake, because the color of the fake wine particles will only be larger in the middle of the paper towel will not be diffused.

2, edible alkali identification

You can use a spoon or a small bowl to speak a little minus water to melt, and then pour the wine on the paper towel, and then speak of alkaline water poured on it, if the color becomes dark blue, is the real wine, if there is no change, then basically it is a fake wine.

This is because the natural anthocyanin in red wine, in acidic conditions will become purple-red, in alkaline conditions will become blue-green, which is a lot of natural pigments have a coloring properties.