Ordinary often find many walnuts and then not open, the inside of the walnut meat will appear different levels of blackening, at the moment most of the potatoes feel that it is because of poor storage and mold, but there are some walnuts in addition to a layer of black on the outside of the case, the inside of the walnut meat flavor does not produce a change, in fact, that kind of walnut meat after the solution is able to be used to eat, but is also There are some blackened walnut meat will give some discomfort after taking.

A simple indicator value: if the microwave heating after frying, the inner seed coat can be casually rubbed off the walnut meat, is generally not a problem of all normal walnut meat; if the inner seed coat can not be rubbed off, is usually moldy walnut meat.

Walnut kernel it inside with many nutrients, usually eat some walnut kernel moderately for often brain, very easy to appear human brain fatigue of the potty will appear very good mitigating effect, and the contract inside with a lot of unsaturated fats, it is not only very easy to be digested and absorbed by the body, but also for the physical and mental health of the human body and its normal growth and development of the human body will appear very good promotion effect. The contract also has a lot of unsaturated fats.