Some fried almonds with shells bought in the store are bitter. I don't know whether they are poisonous or not. How to judge the bitterness and sweetness of almonds from the appearance?
Almonds are divided into sweet and bitter. Almond produced in the south of China belongs to sweet almond (also known as South Almond), which is slightly sweet and delicate, and is mostly used for eating. Almonds produced in the north are bitter almonds (also known as north almonds), which are bitter in taste and often used as medicine; Bitter almond should not be taken too much at a time, but not more than 9 grams at a time.