Apparently darker coloured poppy seeds are the ones to go for. I have acquired some seeds which can be totally untreated, They can be quite black. Not grey/blueish like those inside the supermarkets. I'll be making an attempt some organic sources quickly. Xorkoth mentioned only very good seeds originate from https://austrianpoppyseedcake02016.myparisblog.com/32450579/the-best-side-of-decorative-poppy-pods