How to Know the Walnut Shell Qaulity is Good or Not?

Hi everybody,
How are you today?
In the last week, I introduced to you the various walnut shell applications, and you may know that the walnut shell has so many functions actually, and the walnut shell is serving our daily life although we don't feel it. But how to check the walnut shell quality, in other words, how to know the walnut shell is good or not. Today, I'd like to introduce to everybody.
1. See the color of the walnut shell: Good quality walnut shell is with lighter color, which is close to yellow brown; while defective walnut shell is with red-brown color.
2. Processing raw materials: Good quality walnut shell is processed from the core of the shells of walnut without the surface layer of the shells of walnut, in other words, before processing good quality walnut shell, must putting off the surface layer of the shells of walnut firstly, being the raw materials of processing the good qulity walnut shell. But defective walnut shell is processed by breaking the walnut shell raw materials into different sizes directly and justly.
3. The price: good quality walnut shell is with higher price, because it must have one more processing of selecting good raw shells o walnut. As you know, if putting off the surface layers of the shells of walnut, there will be little shell cores left for processing good quality walnut shell. For example, if collecting 1,000.00kgs raw materials of walnut shell, there will be only less than 500.00kgs of shells core of walnut left for processing good quality walnut shell. On the other hand, the bag quality walnut shell is with lower prices, because its processing costs is lower basically.
4. The walnut shell purity: Good quality is must 100% pure shells of walnut, without any other foreign matters, for example the shells of coconut. But the defective walnut shell is not pure walnut shell, the manufacturer mixes different other matters into it, because the costs of these foreign matters is lower than the shells of walnut.
The above four points are the main differences between good quality walnut shell and bad quality walnut shell. In the future, if somebody have need on the walnut shell, hoping these four points could be help to you when buying the walnut shell.
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