@wildernessmedicspearfishing
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I didn't see any good information on cleaning the shells and teeth so I did some experimenting and made a tutorial.
Yes there are better ways of opening them to eat. This is for saving the shells and teeth for display. This is not a video for cleaning gourmet urchin for eating.
![](https://i.ytimg.com/vi/Vf-TInnrHSw/maxresdefault.jpg)