Because poppy seeds come from the seed pods of opium plants, they can be contaminated with opium milk, which contains morphine. Before they’re used as an ingredient in baking, the seeds are cleaned and processed but are still likely to contain traces of opiate residue. It’s not a high enough concentration for someone to feel any morphine-like effects, but it can be enough to cause a positive result on a sensitive test.
对，就是这个
Because poppy seeds come from the seed pods of opium plants, they can be contaminated with opium milk, which contains morphine. Before they’re used as an ingredient in baking, the seeds are cleaned and processed but are still likely to contain traces of opiate residue. It’s not a high enough concentration for someone to feel any morphine-like effects, but it can be enough to cause a positive result on a sensitive test.