The problem with buying pre-ground spices is that by the time you get to use them, much of their aroma and flavor are already gone. Therefore, it is better to buy whole spices and grind them yourself. The process to do it is really simple, and you can get it done with a spice grinder or a coffee grinder. This video shows you how.
Video credit: ‘The New York Times’ Youtube channel.
A bonus tip: Once you have toasted the spices, allow them to cool fully before you start to grind them.
You can grind India’s traditional garam masala at home with just a few ingredients. Read this: How To Make Traditional Garam Masala At Home