I move all my spices into glass containers and it seems to work better than keeping them in plastic. My bet would also be that plastic AS bottles affect the scent of the product, so I try to transfer into glass bottles whenever I can, though I can't say that my senses are astute enough to notice a difference. If nothing else, I prefer handling glass bottles over using plastic.
Razors don't shave people. People shave people!
There are three critical types of moments in life: Times when we should use opportunity to be enamoured with finer details, and times we should ignore the minutia.