Saffron is divided in 4 types, namely: bunch, pooshal, sargol and negin.
- Sargol (premium quality): it is completely pure and bears no pistil. To achieve this type of saffron red parts (stigma) are separated from the pistil. Color making ability of saffron bunch is ranged between 210-260 units.
- Negin: this type is the highest value of saffron due to high color making ability and large strips. The most pure negin saffron is called super negin. Negin has a very good export trading market and the request is much more than other types.
Most pure saffron is redder in color and purity is correlated positively with red color. Yellow parts (pistil) are more observed in less pure saffron.