How to intuitively judge the quality of walnut shell filter material

How to intuitively judge the quality of walnut shell filter material

When we buy walnut shell filter materials, we will encounter such a problem. We often don't know how to distinguish the quality of walnut shell filter materials. It is impossible for us to reach a very professional level. Is there any way to intuitively understand the pros and cons of walnut shell filter products? Today, Meiqi will introduce to you a little about how to judge the quality of walnut shell filter with the naked eye.

1. Color: The color of the general walnut shell filter material is relatively clean, and the color is light earthy yellow.
  
2. Smell: The walnut shell filter material has a walnut plant odor, and sometimes even the aroma of walnut kernels can be smelled.   
 
3. Floating skin: BODA teaches you a quick method to measure the floating skin. Fill a cup with water and put some walnut shell filter in it. After an hour or two, it will sink under normal conditions and float on the surface of the water. They are all puffy skins. The floating rate of qualified walnut shell filter material is about 1.2% .