How to distinguish real saffron?

when you add the real saffron to the water, it stains it slowly. This is one of the quickest methods to distinguish it from the adulterated saffron that often dyes water almost instantly.

 
 

How does saffron taste like?

Saffron adds a distinctive flavor to dishes, slightly bitter and with metallic shades. Color ranges is yellow orangey - yellow, deep red or brownish.