How should the fruit drink of true and false distinguish the juice of _'s fruits and vegetables

How should the fruit drink of true and false distinguish the juice of _'s fruits and vegetables
Find that there are a lot of self-employed workers on the market, even the factory that has, regard saccharin, essence and pigment as raw materials to formulate into " water of color " Pretend to be the fruit juice to sell, some add a small amount of cane sugar too, though this has not endangered the human body, but a kind of wheel and deal, fills the excellent illegal activities in proper order.

The false fruit juice formulated is also called " Water of color " Or " three precise water " ,The mouthfeel is relatively bad, without sweet and frank feeling of fructose, the back flavor has acerbity of saccharin or has bad smell of stronger cane sugar. " water of color " Generally made by oneself by the pedlar, in order to increase the content of the carbon dioxide, often add the sodium bicarbonate, so taste the soda flavor occasionally of the flavor.

(Source: The adulterated food discerns 300 asks)
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