1. Soak method: the real saffron is refined from purple-blue saffron stamens, take a sample of a small amount of immersion in the water, the water was dyed golden yellow and gradually down, in the water will not immediately become crushed, and the water is bright light yellow, the water surface without oily floats with a magnifying glass to observe, the genuine end of the puffed up into a trumpet-like shape, with a crack on one side. The fake is the stamens of other flowers and even radish cut into very thin filaments, and then dyed and become, soak the radish will become crushed, dyed will quickly fade, and the water will become red or orange and oily float, adulterated varieties of saffron stamens, yellow cauliflower stained, corn style, stigma, saffron, lotus seed, and so on.

2. Paper pressure method: use tissue paper to take a little saffron wrapped in the middle of the hard squeeze, the paper should not leave oil marks, otherwise adulterated minerals or plants.

3. Observation method: the saffron on white paper, spread out and carefully observed, the real saffron is the stamen, although some broken, but each is trumpet-shaped, and with radish cut into the silk stained fakes is difficult to achieve. Or put the saffron into a plastic bag, and then shake, some saffron will be yellow pollen sticking to the plastic bag, a thin layer of light yellow, it is easy to recognize, while the fake is not.

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