Excuse me, how to remove dust from sea cucumber?

There are generally three ways to remove ash from sea cucumber. The first method is to remove ash with edible acid and soak it in edible vinegar. The second method is to remove the dust manually, and brush it with a toothbrush and brush during the hair making process. The third method is very expensive for biological removal. Brush can be used for small batch processing and biological ash removal can be considered for large batch processing.