Hello, the wall-breaking machine to beat walnut powder out of the oil if you can first dry the walnuts and then beat the walnut powder. Grinding walnut powder by hand, because walnuts contain more oil, especially raw walnuts, it is easy to grind out the oil, resulting in the grinding of the powder is wet and inedible, so it is generally necessary to fry the walnuts first, and then use a grinder or a cooking machine to grind the powder, in order to make the grinding out of the walnut powder is better, you can use the following two methods: 1, in the walnut kernel mixed with some dry and low fat content of raw materials, and crushed to make powder, such as Add black sesame and so on, it will be easier to make powder. 2, directly grinding walnuts will grind walnuts into pulp, dry grinding with some water, grinding into a paste, and then use the machine to atomize and dry it into powder. I hope my answer can help you.