The walnuts we usually see have textured shells. In fact, the walnut shell is also wrapped in green clothing. Before drying walnuts, people will first remove the green skin of the walnuts. So, how to peel green walnuts? What is the fastest and most effective way to peel?
How to peel green walnuts 1. Dry them naturally in the shade. Healthy, disease-free, insect-free walnuts with intact epidermis, after being planted in the tree, will naturally dry in the shade for a few days. The epidermis will become wrinkled and shriveled, and the green skin will naturally separate from the nuts. However, for damaged walnuts, the green skin will partially turn black. This method is not suitable as it can cause vaginal skin. 2. Manual peeling. Specific steps: Use a knife to peel off large pieces of green skin, then use an iron brush with water to continue brushing the remaining residual green skin, and finally clean it carefully with a fine needle and a toothbrush. It is best to wear rubber gloves during the entire process, otherwise the skin on your hands will be stained black. Also note: Do not let the green skin juice splash onto other skins, otherwise it will fester, because the green skin of walnuts is also called "green dragon's clothing" and its juice is highly toxic. Don't splash it into your eyes. The biggest advantage of artificial peeling is that the skin color is good-looking, and the natural walnut skin that is separated from the bone is dark. 3. Artificial ripening. If you are in a hurry. Spray 200 times of "Ethephon" solution evenly on the green skin. After one day, the green skin will automatically separate from the bone.
How to peel a large number of green-skinned walnuts? Retting and peeling method: It is a traditional walnut peeling method in my country. The technical key point is to transport the fruits to a cool outdoor place or indoors in a timely manner after harvesting, avoid exposing them to the sun, and then pile them into piles with a thickness of about 50cm (too thick a pile will cause them to rot). If you add a layer of hay or dry leaves about 10cm thick on the fruit pile, it can increase the temperature inside the pile, promote the ripening of the fruits, and speed up the peeling speed. Generally, the green fruit peels are left for 3 to 5 days. When the skin of the green fruit peels off the shell or cracks for more than 50%, it can be peeled off by knocking it with a stick. For those that have not peeled off, they can be soaked for a few more days until all the skin peels off. When retting, do not let the green skin turn black or even rot, so as to prevent the dirty liquid from seeping into the shell and contaminating the kernels, reducing the quality and commercial value of the nuts. Chemical peeling method (this method is not recommended): Due to the long peeling time of the retting peeling method, low work efficiency, high fruit contamination rate, and a greater impact on the quality of nut products, since the 1970s, some units have begun to trial ethylene. Ripening and peeling technology, the specific method is: after the fruits are harvested, dip them in an ethephon solution with a concentration of 0.3 to 0.5 for about half a minute, and then pile them up to a thickness of about 50cm in a cool place or indoors, at a temperature of 30°C , under the condition of relative humidity of 80 to 95, after about 5 days, the peeling rate can be as high as 95 or more. The skin can be peeled off in about 2 days. The length of ethephon ripening time and the concentration of the drug are related to the maturity of the fruit. The fruit maturity is high, the drug concentration is low, and the ripening period is short.
Precautions: Choose walnuts that are healthier and have plump fruits. Be careful of injuring your hands when peeling manually and pay attention to safety. Do not let the black liquid left on the skin get on your clothes and hands, otherwise it will never be washed off your clothes and it will slowly fade on your hands.