I've got bulks of black sesame seeds that need sorting before use. The debris consists of granular pebbles, black twigs, and even metallic looking particles. (It's not fun biting down on the ones that get away - always seeming to find its way into the last bite of a good meal!) I tried sifting through a sieve. I tried drowning the debris; they drowned, but along with a majority of the sesame seeds. After an hour of separating the seeds one-by-one (which resulted in less than a half cup of seeds), I called it quits lest I lose my mind. I would massively appreciate any wisdom on how to efficiently sort through these, but most importantly, thoroughly.