Pine nuts are divided into two types according to their morphology. The first seed is big, full and heavy, which is spread by small animals such as squirrels. The second is that the seed is small and light, with a brown membranous wing, which is spread by the wind on a dry sunny day. Most of the pine trees seen in the city are the second kind, with small fruits, only small seeds after peeling scales, and no edible value.

Matters needing attention in selecting pine nuts

1, to judge the quality of pine nuts, you can also look at the oil content of pine nuts. If the pine oil on a pine nut is relatively large, then the quality is good.

2. Good pine nuts Every pine nut will be white and big. If the color of pine nuts is light yellow, the quality is slightly inferior. If the color of pine nuts is dark yellow and reddish, it means that it has deteriorated.

3, buy pure fried pine nuts, if the opening is uneven, then there is no problem, if the pine nuts are equally uniform, be careful.

The above contents refer to Baidu Encyclopedia-pine nuts.