Sihai network

How to distinguish true and false red wine? Practical tips for distinguishing true and false red win

4hw.com.cn: now red wine is a very common kind of wine in our daily life. After a series of tall packaging, it is possible for the tribute wine of some small workshops to be worth several times or even more than ten times. For many little partners who do not understand red wine, it is difficult to distinguish the quality of a bottle of red wine. Let's teach you some methods to distinguish true and false red wine!

Method 1:

[main ingredients] red wine, edible alkali, water

[Others] napkin

[operation process]

1. Add a little water with half a spoonful of household edible alkali to boil it;

2. Prepare an ordinary napkin;

3. Drop a few drops of red wine on the napkin, the wine will spread evenly, and there will be no precipitation in the middle;

4. Drop the edible alkaline water mixed with water on the red wine;

5. At this time, a magical thing happened. If the red wine turns dark blue, it is real red wine. If there is no response, the red wine is fake.

Because the natural anthocyanins of red grapes show purple red under acidic conditions and blue-green under alkaline conditions, which is also a color characteristic of many natural pigments. If the pigments are mixed, the color will not change.

Method 2:

Stack the white napkin on the table, drop a few drops of red wine, and the uniform diffusion is the real wine. That's because the pigment particles of fake red wine are large, which will precipitate in the middle of the napkin, and the outward diffusion is just water marks.

The fake liquor on the market is basically pigment blending, so the accuracy of these two methods is almost 99.9%. So why not 100%? That is, there is another possibility. If the fake red wine uses grape skin pigment or other pigments that can change color due to different pH, it will not be detected, but the cost of this method is not low and troublesome.

So at least we can know that if our red wine does not change color with edible alkali, it must be false. There is no doubt about this.