If the almond powder you buy is bitter, you should not detoxify it. Don't eat. If you want to eat it, you must boil it in water before drinking it. If you eat it after boiling, it won't be poisoned. Don't worry. I am a distributor of almond and almond powder in Chengde. If necessary, you can look at my website, and Baidu search can find it. Authentic Chengde almonds, shipped from the country of origin, grow naturally, without pesticides or additives.