Spices - whole or ground ?

[SchmuBrew]

I wanted to add some spices to a fairly bland (all 2row grain),

I added 1 pod from a star anise, 1 all spice berry, 10 coriander, & 1 clove, each into their own 250ml jar, just so I can an idea of how the flavors and aromas will come across before creating a mix.

It's only been 2 days but there is zero color, flavor, or aroma from any of them. I am wondering if grinding the spices will make a difference (other than needing to be filtered in the end instead of just removing the solids)

Anyone had much luck spicing up a whiskey? If so I would really appreciate recipe/technique.

Cheers & Thank You in advance

[Expat]

If you grind the anise, its all you're going to taste Powerful stuff.

For the others, generally a course chop works best as you won't end up having to paper filter you spirits to get the dust out.