How to judge whether walnuts are spoiled

People think that nuts are very nutritious. Some nuts can also nourish the brain. Many pregnant women and the elderly like to eat nuts. Some people don't know how to choose nuts when buying them. Sometimes they open the walnuts and find that they are spoiled. How can they judge whether the walnuts are spoiled during the purchasing process? Here we will introduce to you how to choose walnuts and what to do if the walnuts are spoiled.

First, check whether the pecan kernels are uniform, whether there are any shriveled or deformed ones, and whether the color is consistent. Some different ones may be "oily". If you can see that the pecans are obviously mixed with several colors, you must pay special attention, as they may be mixed with stale ones. Secondly, smell it, especially when buying loose pecans, you should first smell it to see if it has the aroma of pecans. Generally, newly roasted pecans have an aroma that can whet your appetite. The next step is to taste it. People who are more familiar with pecans know whether it is a new pecan just by eating it. When you bite into the pecan, the flesh inside is plump, golden in color, and the shell is thin. It is easy to bite open, has a strong aroma, and the flesh is not "astringent".

1. Are walnuts poisonous if eaten if they are spoiled?

Walnuts cannot be eaten once they are spoiled, as they may be poisonous if eaten. It depends on the quantity. When eating walnuts, you must remove the thin skin around the walnut kernel, so that it will not be bitter and will not be poisonous. If it is moldy, it is a problem and cannot be eaten.

Traditional Chinese medicine believes that walnuts have the effect of warming and nourishing the lungs and kidneys, and are a good tonic. Regular consumption of walnuts can not only make people gain weight, but also make their skin plump, reduce wrinkles, and make their beard black. Walnut oil is delicious and fragrant, and has excellent nourishing and medicinal effects. It is a good seasoning food for patients with neurasthenia, emaciation, hypertension and coronary heart disease. External use can treat frostbite.

The best walnuts are those that are large and round, have thin and white shells, high kernel yield, are dry, have large kernels, are white in color, and have a high oil content. The selection method should be based on observation. The better the kernel, the shriveled the worse. The best color for Renyi is yellow and white, while dark yellow is the second best. The brown-yellow one is of lower quality, and the "tiger skin walnut" with dark brown stripes is also of poor quality. The greasy appearance of kernels is a sign of spoilage. The kernels with white and fresh flesh are the best, while kernels with greasy "chrysanthemum heart" are inferior. The kernels are all oily, sticky, dark brown, and have a rancid smell. They are severely spoiled and cannot be eaten.

In order to cater to consumers' preference for appearance, many walnut dealers now bleach the walnut skin. Bleached walnuts may contain some unhealthy substances, and unbleached walnuts are healthy walnuts.

2. What to do if walnuts go bad

1. Throw it away directly

When walnuts go bad, the fruit inside will change from white to brown, black, or even yellowish brown, and it will produce a large amount of mold. It is absolutely inedible and must be thrown away directly. In addition, sometimes when you open the walnuts, you find that the fruit inside has changed its taste and become bitter and astringent. At this time, you can no longer eat it and need to throw it away directly, otherwise it will cause multiple harms to your body after eating it.

2. Prevent walnuts from spoiling

Walnuts cannot be eaten after they have gone bad. Therefore, after purchasing walnuts in large quantities, you should pay attention to the storage of the walnuts and try to avoid them from going bad. Walnuts should be stored in a cool, ventilated, and dry environment, avoiding exposure to strong light and high temperatures, and preventing them from being infested by insects. As long as these are done, the walnuts will rarely go bad and can be stored for about a year without any problem.