Coriander is used widely in Asia, Latin America and the Middle East, thus having many uses for this wonderful spice. Buy Coriander in seed form. When a recipes call for ground coriander, the seed should be dry pan roasted and freshly ground to release its warm lightly spicy aroma. Ground coriander will keep for a few days in a air tight container. For a longer shelf life, the seed should be kept in a air tight container in the freezer