How to distinguish real purple rice from fake? How to distinguish the authenticity of purple rice?

First, you can smell the smell, the real purple rice generally has a very fragrant rice smell, and the fake one will have a pungent chemical smell; Second, you can see it by the color, the color of the needle is relatively uniform and very translucent, while the fake one is generally very dark; Third, you can soak it in water, the fake one will be decolorized.

Authentic purple rice will only have color in the cortex, the inside of the embryo is white, and the color may seep into the inside of the dyed rice, if you cut off the purple rice and find that there is color inside, then it is not true purple rice.

There is a very convenient way, that is, you can use a few drops of white vinegar, if there is a fuchsia appear, it means that it is true, and no color is fake.

I think if you put it in water and soak it for a while, if the color is too strong, it proves that it is colored, which is a kind of fake rice.

Because purple rice is rich in pure natural nutrient pigments and tryptophan, washing or soaking in water will cause color loss (nutrient loss), so it is not advisable to scrub vigorously, and the soaked water is steamed and eaten with purple rice.

Purple rice is a type of rice, and it is named because the rice grains are slender and purple. It belongs to the glutinous rice category, divided into two kinds of purple japonica and purple glutinous, and the folk like to make it into eight treasure rice to eat during the New Year's Festival, the taste is slightly sweet, sticky but not greasy.

At present, there are many cases of counterfeiting in the market, one is purple rice that has been stored for a long time; the other is low-quality purple rice that has been dyed**; Natural purple rice will actually fade after washing, but the fading is not particularly serious, and the reason why natural purple rice will fade is mainly because the skin of purple rice contains anthocyanins, every 100g of Weifeng purple rice purple indica rice anthocyanin content is as high as 210mg, anthocyanins are very soluble in water, soak purple rice in cold water for a short time, you will find that purple slowly spreads out, and the more soluble in water substances are absorbed by the human body.

In addition, you can do a simple experiment to prove whether it is anthocyanin, take out the soaked purple water, add white vinegar (acidic solution) or baking soda (alkaline solution) to the water, if you add vinegar to turn red, add baking soda to turn blue, you can ensure that we buy real purple rice without dyeing.

If there is a serious fading when cleaning purple rice, it should be paid attention to, it is likely to be adulterated, and it is necessary to identify it from the appearance and color when purchasing.

The color fades to distinguish the authenticity of the purple rice. When washing, the good purple rice fades slightly, and the rice washing water is light purple and slightly red; The dyed rice fades very seriously, and the rice washing water is purple-black.

It should be noted that it is normal for purple rice to slightly fade because the seed coat and aleurone layer of purple rice contain anthrocyanidin. When washing rice, anthocyanins dissolve in water, which discolors the water. Anthocyanins have health care functions, and the action should be light when washing rice, just 1 time, so as not to lose too much pigment and reduce the nutritional value.

Purple rice belongs to a kind of rice, there is a thin layer of purple substance on the outer layer, the taste is fragrant and glutinous, it contains more nutrients than ordinary rice, it is beneficial to qi and blood, nourishing liver and kidney, etc., it is a more precious rice variety. Because of the high **, some unscrupulous businesses use food dyes to dye ordinary rice purple, so as to confuse the real with the fake, so how to distinguish the real from the fake purple rice?

1. Regardless of whether it is true or false, the purple rice will fade after entering the water. But authentic purple rice will only have color in the cortex, the inside of the embryo is white, and the color may seep into the inside of the dyed rice, if you cut off the purple rice and find that there is color inside, then it is not real purple rice.

2. The appearance of purple rice is generally slender and symmetrical, and there will be rice groove-like lines on it.

1. Look at the appearance: pure purple rice grains are slender, the grains are full and uniform, the appearance color is purple-white or purple-white with small purple pieces, the water color is black (actual purple) when washed with water, and it is easy to leave purple-black in the fingers when grabbed by hand.

2. Look at the endosperm: the color of purple rice is mainly concentrated in the leather shed, the endosperm is still white, and if it is dyed rice, the color will penetrate, and there will be color inside after cutting. Scrape off all the skin of the outer ridge of the purple rice, and if the inside is white, it is real purple rice.

3. White vinegar detection: the anthocyanins in purple rice turn red when acid, and turn blue (even green) when alkalin, if it is dyed purple rice, the soaked water will not change color. You can use white vinegar to distinguish the quality of purple rice, specifically operate the chain of wild base steps to take out a lot of rice grains, and then a grain of space, and then use white vinegar to drop on the purple rice, to see if there is any color change, because there is now a mixture of dyed rice and purple rice on the market, which will turn red for normal purple rice.

1.Look at the gloss. The epidermal layer of normal black glutinous rice is shiny, and the inferior black glutinous rice has no luster.

2.Look at the epidermis. Normal black glutinous rice is flaked when picked off by hand, and if it is powdered, it is inferior black glutinous rice.

3.Look at the rice heart. The rice core of normal black glutinous rice is white, while the rice core of ordinary rice is transparent and has no color. Black glutinous rice dyed with rice has a uniform appearance, but the color of the dye penetrates into the heart of the rice.

4.Look at the soaked rice water. The soaked rice water of normal black glutinous rice is purple-red, and it is also purple-red or nearly red after dilution. If the soaked water is like ink, and it is still black after dilution, this is fake black glutinous rice.

5.Smell the smell. Take a small amount of black glutinous rice in your hand, take a hot breath on the black glutinous rice, and then immediately smell the smell.

High-quality black glutinous rice has a normal fragrance and no other peculiar smell. Those with slight peculiar smell or mildew odor, sour odor, rotten smell and abnormal smell are inferior and inferior black glutinous rice.

6.Taste the taste. A small amount of black rice can be chewed in your mouth, or grated before tasting. High-quality black glutinous rice has a good taste, slightly sweet, and does not have any peculiar smell. There is no taste, slight peculiar smell, sourness, bitterness and other undesirable tastes for inferior, inferior black glutinous rice.

Experts remind that by soaking the red glutinous rice, the authenticity can be identified.

Red glutinous rice is rice with a purplish-red seed coat. Because rice is waxy, it is called blood glutinous. After the natural blood glutinous rice is soaked in warm water, the purple-red aqueous solution will gradually appear because the red pigment of the seed coat is slowly dissolved by the aqueous solution.

As time goes on, the red color becomes more and more intense. And after cooking, the red seed coat will separate from the embryo (rice grain); Counterfeit blood glutinous rice is made from low-quality rice dyed with purple-red pigment. The most obvious difference is that after soaking in water, the water turns red significantly faster than the genuine blood glutinous rice.

If you wash it a few times, the original shape of the white rice will be revealed, and no red seed coat will appear after cooking.