I use caper berries in salad sometimes, but honestly I mainly like to just eat them straight out of the jar. I've noticed that in a single jar, each berry has 1 of three types of seeds inside:
Black seeds, which are hard in texture
Red seeds, which are also hard, but maybe slightly harder (or softer?) than the black ones
White seeds, which are much softer than the other two.
It seems odd that in a single jar, all 3 varieties would persist. Does the color of the seed indicate anything about the berry? Is there a taste or age difference?