Jintan Putih vs. Jintan Manis

 cumin/jintan putih :

 fennel/jintan manis :

Cumin is more elongated with pointed ends while fennel is a little rounder and has a darker shade.

Cumin is slightly hotter than fennel.

Cumin is used for the aroma, while fennel is used for the flavor.

Too much cumin will cause your food to become bitter.

The best way to release the aroma of cumin is to have it lightly roasted and crushed before using as ingredient for cooking.

http://themalaycook.wordpress.com/2011/02/04/jintan-putih-vs-jintan-manis/