Saffron is called "red gold" because of its high unit price. So there are all kinds of fakes dyed with corn silk, shredded radish and even safflower. But if you identify it carefully, it is still easy to distinguish the real thing. Although the color of the real goods is red, it is really golden yellow, and the fake goods are generally red. If you are worried about adulteration, pick some soaked ones. The top of the real goods is slightly trumpet-shaped and cracked. You can't do these small details after the fake is soaked.
If you haven't drunk it or don't have the confidence to distinguish it, I suggest you don't buy it in bulk. It's annoying to buy it yourself. I just saw an angel saffron imported from India on the Internet. Looking at the pictures should be no problem, and the price is not much more expensive than bulk, 36.9 yuan a gram. You can drink it for 20 days. It should be more suitable for beginners.